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Heap-based buffer overflow in Microsoft Office Access enables remote code execution when a victim opens a specially crafted Access database file, with an attacker needing no credentials but depending on user interaction to trigger the flaw. The vulnerability carries a CVSS 3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), meaning successful exploitation yields full loss of confidentiality, integrity, and availability within the Access process context, though the mandatory opening of the malicious file limits automated, hands-off exploitation. Based on available intelligence, no public exploit identified at time of analysis and EPSS scoring was not supplied; the entry appears only in the Microsoft Security Response Center update guide, and no CISA KEV listing or other exploitation signal is present.
Heap-based buffer overflow in Microsoft Office Access lets unauthenticated remote attackers execute arbitrary code in the context of the user who opens a specially crafted Access database (.accdb/.mdb) file. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, 8.8) confirms that no credentials are required and attack complexity is low, but the mandatory user interaction (UI:R) - typically a phishing attachment, download, or shared file - is the gating factor that prevents automated, widespread exploitation; code runs only with the privileges of the user who opened the file. There is confirmed KEV? no - no public exploit identified at time of analysis, no CISA KEV listing, and no EPSS score was supplied, so this is a credible, patchable priority rather than an actively exploited emergency.
Remote code execution in Microsoft Office Access occurs when a victim opens an attacker-supplied, specially crafted Access database file that triggers a heap-based buffer overflow during file parsing (CWE-122). The flaw is rated CVSS 3.1 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H): it is network-deliverable, low-complexity and needs no authentication, but is gated entirely by the requirement that a user open the malicious document, and scope is unchanged so code runs in the victim's user context rather than granting system-wide control. No public exploit code or confirmed active exploitation was identified in the available intelligence at time of analysis.
Microsoft Access (part of Microsoft Office) contains an out-of-bounds read (CWE-125) that can be exploited to execute arbitrary code when a victim opens a specially crafted database file. The CVSS vector (8.8, AV:N/AC:L/PR:N/UI:R) indicates that unauthenticated remote attackers can achieve high confidentiality, integrity, and availability impact, but the required user interaction makes this a serious yet not top-tier emergency. No public exploit code or active exploitation has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Access allows unauthenticated remote attackers to execute code when a victim opens a maliciously crafted Access database, scoring CVSS 8.8. Exploitation requires user interaction (UI:R), so there is no zero-click or server-side vector, and code runs in the context of the user who opens the file, limiting immediate blast radius. No public exploit identified at time of analysis; this is serious but not emergency-tier because the victim must open the attacker-supplied file.
Heap-based buffer overflow in Microsoft Office Access allows an unauthenticated remote attacker to execute code in the security context of the user who opens a specially crafted Access database file. Exploitation is not autonomous despite the AV:N vector: the attacker must deliver the malformed file and persuade the victim to open it (UI:R), and reliable code execution further depends on heap-layout grooming to control the corrupted allocation (AC:H), so any code that runs inherits only the opening user's privileges (S:U). No public exploit code or CISA KEV entry was identified at time of analysis, and no EPSS score was supplied; the assessed risk is mixed-priority given the mandatory user interaction and high attack complexity.
Heap-based buffer overflow in Microsoft Office Access allows unauthenticated remote attackers to execute arbitrary code when a victim opens a maliciously crafted Access database file. The vulnerability requires user interaction (UI:R) but no authentication (PR:N), and successful exploitation grants code execution with the privileges of the current user (S:U). No public exploit code or active exploitation has been identified at time of analysis; however, the high CVSS score (8.8) and low attack complexity make this a significant risk for organizations using affected Access versions.
Heap-based buffer overflow in Microsoft Office Visio enables remote code execution when a victim opens a maliciously crafted Visio drawing file (CVSS 8.8, CWE-122). The attack is unauthenticated (PR:N) and remotely deliverable (AV:N), but requires user interaction (UI:R): the target must have the separately licensed Visio application installed and must be persuaded to open the attacker-supplied file, typically delivered by phishing email or a hosted download. There is no confirmed active exploitation (not listed in CISA KEV) and no public exploit code identified at time of analysis; real-world risk is materially reduced by Protected View, Mark-of-the-Web, attachment blocking, and the fact that Visio is not present in most Office installations.
Heap-based buffer overflow in Microsoft Visio allows remote, unauthenticated attackers to execute arbitrary code in the context of the user who opens a specially crafted Visio document. Exploitation is not zero-click: it requires user interaction (UI:R), with the malicious file typically delivered as an email attachment or download link that the victim must open, and no credentials or special target-side configuration are needed (PR:N). No public exploit code or confirmed active exploitation is identified in the available data, no EPSS score was supplied, and Microsoft's MSRC Update Guide is the authoritative reference for fixes.
Heap-based buffer overflow in Microsoft Office Access allows an unauthenticated remote attacker to execute arbitrary code in the security context of the user who opens a crafted Access database file. Exploitation is gated by user interaction (UI:R) - the victim must open an attacker-supplied file delivered by email, web download, or shared location - with low attack complexity (AC:L) and no credentials required from the attacker (PR:N), and code runs as the invoking user rather than as SYSTEM. Rated 8.8 (C:H/I:H/A:H); no public exploit code and no confirmed active exploitation were identified at time of analysis, and environments that do not install or use Access are not exposed.
Remote code execution in Microsoft Access is possible when a user opens a specially crafted Access file, exploiting a heap-based buffer overflow (CWE-122) to let an unauthenticated attacker execute code in the context of the victim. Affected are systems with Microsoft Access installed; the attack requires user interaction (UI:R in the CVSS vector) and no public exploit code or confirmed active exploitation is identified at time of analysis, though the vendor advisory should be consulted for updates.
Remote code execution in Microsoft Excel allows an unauthorized attacker to execute arbitrary code when a victim opens a crafted spreadsheet, per the vendor advisory for CVE-2026-100212. The issue is a use-after-free (CWE-416) reachable over the network with no privileges required (AV:N/PR:N), but exploitation is gated by user interaction (UI:R) and runs in the security context of the user who opens the file (S:U). No public exploit identified at time of analysis, and the independent assessment rates it a credible prioritization candidate but not an emergency.
Code execution in Microsoft Excel can be triggered when a victim opens or previews an attacker-crafted workbook, exploiting a use-after-free (CWE-416) in file parsing. The flaw is remotely reachable with low complexity and no privileges per CVSS (PR:N), but requires user interaction (UI:R), so exploitation depends on file delivery and social engineering rather than self-propagation. No public exploit was identified at time of analysis and no CISA KEV confirmation was provided; the risk is high-priority but not an automatic emergency given the user-interaction requirement.
Heap-based buffer overflow in Microsoft Excel enables an unauthenticated, remote attacker to execute arbitrary code in the context of the victim user, provided the victim opens or previews a specially crafted Excel workbook (CVSS 8.8, vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). Exploitation depends on social engineering to deliver the malicious file, and default Office protections such as Protected View and Mark-of-the-Web meaningfully reduce real-world risk. No public exploit code or confirmed active exploitation has been identified at the time of analysis, and signals are moderately strong but not top-tier urgent.
Use-after-free memory corruption in Microsoft Office Excel allows remote, unauthenticated attackers to execute arbitrary code in the context of the user who opens a crafted spreadsheet (CVSS 3.1 base 8.8, High; AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). Exploitation is client-side and hinges on user interaction: the victim must open or preview an attacker-supplied Excel document, so delivery depends on a social-engineering lure (email attachment, hosted file, or file-share link) and resulting code runs only at the privilege level of the opening user. No public exploit code and no confirmed active exploitation (CISA KEV) were identified in the available intelligence at time of analysis, and Protected View plus Mark-of-the-Web handling of files from untrusted sources materially constrains realistic exploitation.
Heap-based buffer overflow in Microsoft Office Excel allows a local attacker to execute arbitrary code with the privileges of the victim user by convincing them to open a specially crafted Excel file. The vulnerability spans a wide range of currently supported Office releases - Excel 2016 through Microsoft 365 Apps for Enterprise, plus Office for Mac editions - making the attack surface broad. No public exploit or CISA KEV listing has been identified at time of analysis, but Microsoft has issued patches across all affected channels.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a victim opens a specially crafted Excel file. Affected products span Excel 2016 through Microsoft 365 Apps for Enterprise and LTSC 2024 editions, including Mac variants. No public exploit code or CISA KEV listing has been identified at time of analysis, and Microsoft has released patches across all affected product lines.
Out-of-bounds read in Microsoft Excel's file-parsing engine allows code execution when a victim opens a specially crafted workbook. Affected builds span Excel 2016 through Office LTSC 2024 and their Mac equivalents, making the exposure broad across both perpetual-license and subscription deployments. No public exploit code has been identified at time of analysis, but Microsoft has released patched builds for all affected product lines.
Out-of-bounds read (CWE-125) in Microsoft Office Excel's file-parsing engine enables local code execution when a victim opens a specially crafted spreadsheet. Affects a wide range of Microsoft Office products from version 2016 through LTSC 2024 and Microsoft 365 Apps for Enterprise, on both Windows and Mac platforms. No public exploit identified at time of analysis, but the low attack complexity combined with full confidentiality, integrity, and availability impact makes phishing-delivered document lures a realistic and proven delivery vector.
Use-after-free code execution in Microsoft Excel allows a local unauthenticated attacker to execute arbitrary code at the privilege level of the victim user by enticing them to open a specially crafted workbook file. Affected products span the full current Office portfolio: Excel 2016, Office 2016/2019, Office LTSC 2021/2024 (Windows and Mac), and Microsoft 365 Apps for Enterprise. No public exploit or CISA KEV listing is identified at time of analysis, but Microsoft has released patches addressing all affected version lines.
Stack-based buffer overflow in Microsoft Office Excel enables arbitrary code execution when a user opens a specially crafted workbook. The vulnerability (CWE-121) spans a wide range of Office suites from 2016 through 2024 LTSC on both Windows and macOS. No public exploit code or active exploitation (CISA KEV) has been identified at time of analysis, but the broad affected surface - including Microsoft 365 Apps for Enterprise - makes patching a priority for enterprise environments.
Remote code execution in Microsoft Office Word arises from a heap-based buffer overflow (CWE-122) triggered when a user opens a specially crafted document. The flaw affects a broad swath of Office product lines - Microsoft 365 Apps for Enterprise, Office 2016/2019/LTSC 2021/LTSC 2024 on Windows, and Office for Mac variants - with vendor patches available at specific build thresholds. No public exploit code or CISA KEV listing exists at time of analysis, placing this in the category of patched-but-unconfirmed-exploited, though the enormous deployment footprint and phishing-friendly delivery model elevate real-world priority.
Heap-based buffer overflow in Microsoft Excel enables local code execution with full user-level privileges when a victim opens a specially crafted workbook file. Affected products span the entire current Office portfolio - Excel 2016 through Office LTSC 2024 and Microsoft 365 Apps for Enterprise - on both Windows and macOS. No public exploit code has been identified and this vulnerability is not listed in the CISA KEV catalog at time of analysis, but the broad install base and file-delivery attack path make it a meaningful phishing vector.
Double-free memory corruption (CWE-415) in Microsoft Excel enables local arbitrary code execution across a wide range of Office product lines including Excel 2016, Office 2019, LTSC 2021/2024, and Microsoft 365 Apps for Enterprise. An attacker who delivers a specially crafted Excel workbook and convinces a target user to open it can achieve arbitrary code execution in the user's security context, with high confidentiality, integrity, and availability impact. Vendor-released patches are available for all Windows Office variants; no public exploit and no CISA KEV listing have been identified at the time of analysis.
Integer overflow in Microsoft Excel's file parsing engine allows an unauthenticated attacker who delivers a specially crafted Excel workbook to execute arbitrary code with the privileges of the victim user upon file opening. The vulnerability spans Excel 2016 through Microsoft 365 Apps for Enterprise and LTSC variants on both Windows and macOS. No public exploit code has been identified at time of analysis, and Microsoft has issued patches across all affected product lines.
Heap-based buffer overflow (CWE-122) in Microsoft Office Excel allows a local, unauthenticated attacker to execute arbitrary code with the privileges of the victim user by convincing them to open a specially crafted Excel file. The vulnerability affects a broad range of Office releases spanning Excel 2016 through Office LTSC 2024, on both Windows and macOS. Microsoft has released patches addressing this flaw; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a victim opens a specially crafted Excel file. Affected products span nearly every current Office release line - Excel 2016, Office 2019, Office LTSC 2021 and 2024 (Windows and Mac), Microsoft 365 Apps for Enterprise, Office 365 for Mac, and Office Online Server. An attacker who tricks a user into opening a malicious workbook can achieve full code execution at the victim's privilege level, with high confidentiality, integrity, and availability impact. No public exploit code has been identified at time of analysis, and no CISA KEV listing exists.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution across nine distinct Office SKUs ranging from Excel 2016 through Microsoft 365 Apps for Enterprise. Exploitation requires a victim to open a specially crafted Excel file, making phishing and malicious-document delivery the primary attack vectors. Microsoft has released patched builds for all affected Windows variants; Mac-platform fixed builds should be confirmed via the MSRC advisory. No public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a user opens a specially crafted workbook. The vulnerability (CWE-122) affects all major Office perpetual and subscription editions across Windows and Mac, spanning Excel 2016 through Microsoft 365 Apps for Enterprise. No public exploit code has been identified at time of analysis, but the file-open trigger and full C/I/A impact make this a high-priority patch for organizations relying on email-delivered spreadsheets.
Stack-based buffer overflow in Microsoft Office Excel enables arbitrary code execution at the current user's privilege level when a victim opens a specially crafted workbook file. The vulnerability spans Excel 2016 through Microsoft 365 Apps for Enterprise and LTSC 2024 across both Windows and Mac platforms, making the potential victim population extremely large. Microsoft has released patches via MSRC; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a victim opens a specially crafted Excel file. Affected products span the full Office portfolio - Excel 2016, Office 2019, 2021, 2024 LTSC editions, and Microsoft 365 Apps for Enterprise on both Windows and Mac. An attacker who can convince a user to open a malicious workbook can achieve full C:H/I:H/A:H compromise of the victim's session. No public exploit or CISA KEV listing has been identified at time of analysis, and Microsoft has released patched builds.
Stack-based buffer overflow in Microsoft Office Excel enables local code execution when a user opens a specially crafted workbook, affecting all major Office product lines from Excel 2016 through Office LTSC 2024 and Microsoft 365 Apps for Enterprise on both Windows and Mac platforms. The vulnerability carries a CVSS 7.8 score reflecting high CIA impact against the Office process, with mandatory user interaction (opening the malicious file) as the sole prerequisite. Microsoft has released patches for all supported versions; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution across all major Office release tracks when a victim opens a maliciously crafted spreadsheet file. The vulnerability is rooted in improper heap memory management during Excel's file parsing routines (CWE-122), resulting in full compromise of confidentiality, integrity, and availability on the victim system. No public exploit code has been identified at time of analysis, but the breadth of affected versions - spanning Office 2016 through Microsoft 365 and Mac variants - makes this a high-priority patch target for enterprise environments.
Remote code execution in Microsoft Office Publisher allows a network-based attacker to execute arbitrary code on a victim's machine by exploiting unsafe deserialization of untrusted data in Publisher file parsing. Affected products span the full Office ecosystem including Microsoft 365 Apps for Enterprise, Office LTSC 2024/2021, Publisher 2016, and Office 2019. Exploitation requires user interaction - the victim must open a crafted Publisher file - but no authentication or elevated privileges are needed from the attacker's side. No public exploit or active exploitation (CISA KEV) has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Word enables unauthenticated remote attackers to achieve arbitrary code execution at the privilege level of the target user. The vulnerability (CWE-122) is triggered when a victim opens a specially crafted Word document, covering Word 2016, Office 2019, Office LTSC 2021/2024, and Microsoft 365 Apps for Enterprise across both Windows and Mac platforms. Microsoft has released patches; no public exploit code or CISA KEV listing has been identified at time of analysis, though the broad product coverage and high CVSS of 8.8 make this a priority patching target.
Remote code execution in Microsoft 365 Apps for Enterprise PowerPoint (versions below 16.0.20326.20136) is possible via a use-after-free (CWE-416) triggered when a user opens a specially crafted PowerPoint file. The CVSS 8.8 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) reflects full CIA impact achievable without attacker authentication, requiring only that the victim opens a malicious document. No public exploit code or CISA KEV listing has been confirmed at time of analysis, but Microsoft has released a patch and the memory corruption primitive makes this a high-priority update for enterprise environments.
Remote code execution in Microsoft Office Word via a double-free memory corruption flaw (CWE-415) allows a network-accessible, unauthenticated attacker to achieve full system compromise with high confidentiality, integrity, and availability impact. The vulnerability spans seven distinct product/version combinations - Word 2016, Office 2019, LTSC 2021, LTSC 2024, Microsoft 365 Apps for Enterprise on Windows, and multiple Mac editions - making the affected surface unusually broad. No public exploit code or CISA KEV listing has been identified at time of analysis, though the low attack complexity and wide deployment footprint make rapid patching a clear priority.
Remote code execution in Microsoft Office Word via a heap-based buffer overflow (CWE-122) allows an unauthenticated network attacker to fully compromise a victim system upon opening a crafted document. All major Office licensing tracks are affected on both Windows and macOS, spanning Office 2016 through Microsoft 365 Apps for Enterprise. No CISA KEV listing or public exploit code is referenced in available data, but the low-complexity, no-privileges-required vector with full confidentiality, integrity, and availability impact makes this a critical priority for enterprise patch cycles.
Remote code execution via use-after-free (CWE-416) in Microsoft Office Outlook allows a network-based attacker to execute arbitrary code on a victim's system when the user opens or previews malicious content. The vulnerability affects a broad range of Microsoft Office versions across Windows and macOS, including Microsoft 365 Apps for Enterprise, Office LTSC 2021/2024, Office 2019, and Word 2016. No public exploit identified at time of analysis, but a vendor patch is available; the CVSS score of 8.8 (AV:N/AC:L/PR:N/UI:R) reflects the high severity, tempered only by the requirement for user interaction.
Out-of-bounds write (CWE-787) in multiple Microsoft Office versions enables remote code execution when a victim opens a specially crafted Office document. The vulnerability affects a broad matrix of products spanning Microsoft 365 Apps for Enterprise, Office LTSC 2021/2024, Office 2016/2019, and their Mac counterparts, covering virtually the entire modern Office product line. Vendor patches have been released via MSRC; no public exploit or CISA KEV listing has been identified at time of analysis, but the network-deliverable, low-complexity nature and full C/I/A impact make this a high-priority patching target.
Heap-based buffer overflow in Microsoft Office Word's document parsing engine enables remote unauthenticated attackers to execute arbitrary code on target systems when a user opens a specially crafted document. The vulnerability affects a wide range of Microsoft Office releases - Word 2016, Office 2019, LTSC 2021, LTSC 2024, Office 365 for Mac, and Microsoft 365 Apps for Enterprise - making the attack surface extremely broad. Microsoft has released patches across all affected product lines; no public exploit or CISA KEV listing has been identified at time of analysis, though UI:R interaction remains the sole barrier to exploitation.
Remote code execution in Microsoft Outlook stems from CWE-908 (use of uninitialized resource), enabling a network-based attacker to execute arbitrary code on a victim's machine without requiring authentication. The CVSS vector (PR:N/UI:R) indicates the attack requires no attacker credentials but does require user interaction - consistent with a malicious email or attachment that triggers uninitialized memory access when opened or previewed. All major Outlook perpetual and subscription editions from 2016 through Microsoft 365 Apps for Enterprise are affected, making the attack surface extremely broad across enterprise environments. No public exploit or KEV listing has been identified at time of analysis.
Out-of-bounds read in Microsoft Office Excel enables remote code execution when a victim opens a crafted Excel workbook, achieving full C/I/A compromise on the target system. The vulnerability spans every major Office product line from Excel 2016 through Microsoft 365 Apps for Enterprise on both Windows and macOS. Vendor-released patches are available for all Windows product lines with specific fixed builds enumerated; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Word enables remote unauthenticated code execution when a victim opens a specially crafted document. Affects the full breadth of Office deployments - Microsoft 365 Apps for Enterprise, Office 2019, Office LTSC 2021/2024, Word 2016, and their Mac equivalents - making the attack surface extremely wide. No public exploit identified at time of analysis, but the CVSS 8.8 vector (AV:N/AC:L/PR:N/UI:R) with full C/I/A impact places this firmly in priority patching territory for enterprise environments.
Use-after-free in Microsoft Word enables remote code execution when a victim opens or interacts with a specially crafted document. The CVSS vector (AV:N/AC:L/PR:N/UI:R) reflects delivery over the network with no authentication required and only a single user interaction - opening a malicious file - as the prerequisite. Full confidentiality, integrity, and availability compromise is achievable on the affected endpoint, spanning Microsoft Word 2016, Office 2019, Office LTSC 2021/2024, Microsoft 365 Apps for Enterprise, and their Mac counterparts. No public exploit or CISA KEV listing has been identified at time of analysis; vendor patch is available.
Heap-based buffer overflow in Microsoft Word's document-parsing engine, arising from a numeric truncation error, enables remote code execution when a user opens a specially crafted Word document. The flaw spans a wide matrix of Office SKUs on both Windows and Mac - including Office 2016, 2019, LTSC 2021/2024, Microsoft 365 Apps for Enterprise, and Mac variants - and carries CVSS 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), reflecting full compromise with the only friction being the required user interaction. No public exploit code or CISA KEV listing has been identified at time of analysis, but the ubiquity of the Office install base makes this a high-priority patching target.
Remote code execution in Microsoft Office Word exposes virtually every Windows and macOS Office release channel - Word 2016, Office 2019, LTSC 2021/2024, 365 Apps for Enterprise, and Office for Mac - to full system compromise via a specially crafted document. The heap-based buffer overflow (CWE-122) fires during document parsing with no authentication required from the attacker, only standard user interaction to open the malicious file, yielding C:H/I:H/A:H impact under a low-complexity attack path. Microsoft has issued patches across all Windows release branches and flags macOS editions as affected; no public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Word (Microsoft 365 Apps for Enterprise, Office 2016, Office 2019, Office LTSC 2021, Office LTSC 2024, and the corresponding macOS Office builds) enables arbitrary code execution in the security context of the user who opens an attacker-crafted Word document. The attack is client-side: a victim must open or preview a malicious file delivered by email, web download, or a shared location, and no authentication or elevated privileges on the target are required (PR:N), though our assessment sets the interaction requirement at UI:R despite the UI:N flag in the published vector. No public exploit code has been identified at time of analysis and EPSS is low (0.95%, 59th percentile), but CISA SSVC rates the technical impact as total with automatable exploitation and vendor patches are available, making this a genuinely notable issue rather than an emergency.
Remote code execution in Microsoft Office Outlook stems from a heap-based buffer overflow (CWE-122) that lets an unauthenticated network attacker run arbitrary code, per Microsoft's MSRC advisory and CVSS 9.8 (AV:N/AC:L/PR:N/UI:N). The flaw affects Office 2019, Office LTSC 2021/2024, Microsoft 365 Apps for Enterprise, Word 2016, and Office for Mac builds; Microsoft has released fixed builds. No public exploit identified at time of analysis, but the critical severity and no-interaction network vector make it a high patch priority.
Remote code execution in Microsoft Office Word via a use-after-free (CWE-416) memory corruption flaw allows an unauthenticated network attacker to compromise a target system when the victim opens a specially crafted document. All major release tracks are affected - Office 2019, LTSC 2021, LTSC 2024, and Microsoft 365 Apps for Enterprise on both Windows and macOS - with fixed builds published by Microsoft. No CISA KEV listing or public exploit has been identified at time of analysis, but the CVSS 8.8 PR:N/UI:R profile is characteristic of document-delivery RCE bugs historically prioritized by both criminal and nation-state actors for initial access.
Heap-based buffer overflow in Microsoft Office allows unauthenticated remote attackers to execute arbitrary code on a victim's system when the victim opens a specially crafted Office document. Multiple product lines are affected, including Microsoft 365 Apps for Enterprise, Office LTSC 2021/2024, Office 2016/2019, and Mac variants of each. With a CVSS score of 8.8 and full confidentiality, integrity, and availability impact, this is a high-severity code execution path; no public exploit code or CISA KEV listing has been identified at time of analysis, and a vendor-released patch is available.
Stack-based buffer overflow (CWE-121) in Microsoft Office Word enables a remote unauthenticated attacker to execute arbitrary code on a victim's machine by delivering a specially crafted Word document and inducing the target to open it. The vulnerability spans a wide swath of Office product lines - from Word 2016 through Office LTSC 2024 and Microsoft 365 Apps for Enterprise - on both Windows and macOS platforms. Microsoft has released patches across Windows product lines; no public exploit has been identified at time of analysis and the vulnerability is not listed in the CISA KEV catalog.
Remote code execution in Microsoft Office Word allows an unauthenticated network attacker to execute arbitrary code on a victim's machine by delivering a specially crafted document that triggers a null pointer dereference. Affected versions span Microsoft Word 2016, Office 2019, Office LTSC 2021, Office LTSC 2024, Microsoft 365 Apps for Enterprise, and Office LTSC for Mac variants. Microsoft has released patches across all affected product lines; no public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow (CWE-122) in multiple Microsoft Office versions enables remote code execution when a victim opens a specially crafted document. The CVSS vector (AV:N/AC:H/PR:N/UI:R) confirms network-based delivery without attacker authentication, but exploitation requires high attack complexity and active user interaction - consistent with a maliciously crafted Office file that triggers a memory corruption condition in Office's document parsing subsystem. Affected builds span Office 2019, LTSC 2021, LTSC 2024, Microsoft 365 Apps for Enterprise, and Mac-platform variants; patched build numbers are available for Windows-based SKUs per EUVD-2026-73290, while Mac SKU fix versions are not specified in available data.
Heap-based buffer overflow in Microsoft Office Word enables remote unauthenticated attackers to achieve full code execution (C:H/I:H/A:H) by delivering a specially crafted Word document to a target user across all major Office suite versions on both Windows and macOS. Affected products span Microsoft 365 Apps for Enterprise, Office 2019, Office LTSC 2021, Office LTSC 2024, and Word 2016, with fixed version thresholds confirmed by EUVD. No public exploit or CISA KEV listing identified at time of analysis, but the network-vector, no-auth delivery model is highly attractive for phishing-based initial access campaigns. Vendor-released patch is available via Microsoft Security Response Center.
Heap-based buffer overflow in Microsoft Office Word's document-parsing engine enables remote code execution when a victim opens a specially crafted file, yielding full confidentiality, integrity, and availability compromise of the user's session. Affected products span Microsoft 365 Apps for Enterprise, Office 2019, Office LTSC 2021, Office LTSC 2024, Word 2016, and corresponding macOS editions across both x86 and x64 architectures. No public exploit identified at time of analysis, but the AV:N/PR:N/UI:R CVSS pattern is historically associated with rapid phishing-campaign weaponization for Office document vulnerabilities.
Remote code execution via use-after-free in Microsoft Office PowerPoint enables a network-positioned, unauthenticated attacker to execute arbitrary code on a victim's system when the victim opens a crafted PowerPoint file. The flaw spans the entire current Office product family including Microsoft 365 Apps for Enterprise, Office LTSC 2021/2024, PowerPoint 2016, Office 2019, and their Mac counterparts. No public exploit code or active CISA KEV listing has been identified at time of analysis, but the broad product coverage and lack of privilege requirements make this a high-priority patch target.
Heap-based buffer overflow (CWE-122) in Microsoft Office Access enables network-delivered remote code execution across six Microsoft Office product lines. When a victim opens a maliciously crafted Access database file delivered over a network, the overflow corrupts heap memory and allows an attacker to execute arbitrary code with the privileges of the logged-in user. No public exploit code or CISA KEV listing has been identified at time of analysis, and Microsoft has released patched builds for all affected product lines.
Use-after-free in Microsoft Office PowerPoint enables remote code execution when a victim opens a specially crafted PowerPoint document. The vulnerability affects PowerPoint 2016, 2019, Office LTSC 2021, LTSC 2024, Microsoft 365 Apps for Enterprise, and Office for Mac across multiple build versions, spanning virtually the entire active Office install base. Vendor patches have been released; no public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Word enables remote code execution across all currently-supported Office editions when a victim opens a specially crafted document. Affecting Microsoft 365 Apps for Enterprise, Office 2016 through 2024 LTSC on both x86 and x64 platforms, the vulnerability requires no attacker privileges but depends on user interaction - the classic malicious-document delivery model. No public exploit code or CISA KEV listing has been identified at time of analysis, though the CVSS 8.8 rating, full confidentiality/integrity/availability impact, and the near-universal enterprise footprint of Microsoft Office make this a high-priority patching candidate.
Stack-based buffer overflow in Microsoft Office Word's document parsing engine allows remote unauthenticated attackers to execute arbitrary code with the privileges of the victim user when a specially crafted Word document is opened. The flaw (CWE-121) spans Microsoft 365 Apps for Enterprise, Office 2019, Office LTSC 2021, Office LTSC 2024, and Word 2016 on both Windows and macOS. Microsoft has released patched builds; no public exploit code and no CISA KEV listing have been identified at time of analysis.
Remote code execution is possible in Microsoft Office Publisher across multiple Office suite versions when a victim opens a maliciously crafted Publisher document. The root cause is an integer overflow or wraparound (CWE-190) in the file-parsing subsystem, which typically produces an understated buffer allocation that an attacker can exploit to corrupt heap memory and redirect execution. Affected releases span Publisher 2016 through Microsoft 365 Apps for Enterprise; vendor-released patches are available for all affected versions, and no public exploit code or CISA KEV listing has been identified at time of analysis.
Out-of-bounds read in Microsoft Office (2016 through 365 Apps for Enterprise and LTSC 2024) enables an unauthenticated remote attacker to disclose sensitive memory contents over a network, per the provided CVSS vector. Affected products span both perpetual-license and subscription editions across x64 and x86 architectures. No public exploit code or active exploitation (CISA KEV) has been identified at time of analysis, and Microsoft has released patches across all affected version lines.
Stack-based buffer overflow in Microsoft Word (CWE-121) enables remote code execution by enticing a user to open a maliciously crafted document, with full compromise of confidentiality, integrity, and availability. Affected products span Office 2019, 2021, and 2024 LTSC on both Windows (x86/x64) and macOS, as well as Microsoft 365 Apps for Enterprise and Word 2016. Microsoft has released patches across all affected product lines; no public exploit code has been identified and CISA KEV confirmation is absent at time of analysis.
Stack-based buffer overflow in Microsoft Word's document-parsing engine enables network-delivered remote code execution with full system impact across all current Microsoft Office product lines on Windows and macOS. The vulnerability (CWE-121) is triggered when a user opens a specially crafted Word document, overflowing a fixed-size stack buffer and allowing an attacker to hijack control flow and execute arbitrary code in the context of the logged-in user. Affected versions span Word 2016 through Microsoft 365 Apps for Enterprise and LTSC editions on both x86/x64 Windows and macOS; patches are available per vendor advisory, and no public exploit code has been identified at time of analysis.
Remote code execution in Microsoft Office PowerPoint stems from a use-after-free memory corruption flaw (CWE-416) that enables network-based attackers to execute arbitrary code when a victim opens a crafted presentation file. All major Office editions are affected - Microsoft 365 Apps for Enterprise, Office LTSC 2021 and 2024, Office 2019, PowerPoint 2016, and multiple macOS variants - spanning a broad enterprise and consumer installed base. No public exploit or CISA KEV listing has been identified at time of analysis; Microsoft has released patches across all affected Windows product lines.
Heap-based buffer overflow in Microsoft Office Word's document parsing engine enables an unauthenticated remote attacker to achieve full code execution on a victim's system when a specially crafted Word document is opened. The flaw spans all major currently-supported Office release channels on both Windows and macOS, including Microsoft 365 Apps for Enterprise, Office 2019/2021/2024 LTSC, Word 2016, and macOS editions. No public exploit or CISA KEV listing has been identified at time of analysis, but the low attack complexity, broad product footprint, and well-understood Office document exploitation tradecraft make this a high-priority patching candidate.
Remote code execution in Microsoft Office via a use-after-free (CWE-416) memory corruption flaw allows a network-adjacent or remote attacker to execute arbitrary code on the victim's machine. The attack is client-side: the attacker delivers a maliciously crafted Office document, which when opened by the user triggers the UAF condition. Affected products span the full Office family including LTSC 2021, LTSC 2024, Office 2019, Microsoft 365 Apps for Enterprise, and Mac variants; a vendor patch is available.
Heap-based buffer overflow in Microsoft Office Outlook enables remote unauthenticated attackers to execute arbitrary code on the victim's system across multiple current Office product lines. The CVSS 8.8 vector (AV:N/AC:L/PR:N/UI:R) reflects network-accessible exploitation requiring no privilege, with the sole limiting gate being user interaction-likely opening or previewing a crafted message. No active exploitation is confirmed via CISA KEV and no public exploit code is known at time of analysis; Microsoft has released patched builds across all affected product lines.
Stack-based buffer overflow in Microsoft Access enables remote code execution when a user opens a specially crafted database file, delivering full confidentiality, integrity, and availability compromise on the vulnerable host. Affected products span all current Microsoft Office release trains - Access 2016, Office 2019, Office LTSC 2021, Office LTSC 2024, and Microsoft 365 Apps for Enterprise - representing a broad enterprise attack surface. Microsoft has released patches via its standard update channel; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow (CWE-122) in Microsoft Office Word enables unauthenticated remote code execution when a victim opens a specially crafted document. All currently supported Office product lines are affected across Windows (x86/x64) and macOS, including Microsoft 365 Apps for Enterprise, Office 2016, 2019, 2021 LTSC, 2024 LTSC, and Microsoft 365 for Mac. No public exploit code or CISA KEV listing has been identified at time of analysis, but the breadth of affected products and full C/I/A impact make this a high-priority patching item across virtually all enterprise environments.
Heap-based buffer overflow in Microsoft Office Access enables remote code execution when a user opens a specially crafted Access database file. The CVSS 8.8 vector (AV:N/AC:L/PR:N/UI:R) confirms unauthenticated network delivery requiring only a single user interaction - consistent with a malicious file attachment or download attack pattern. No public exploit code or CISA KEV listing has been identified at time of analysis, but the full-triad impact (C:H/I:H/A:H) and broad affected version range spanning Office 2016 through Microsoft 365 Apps make this a high-priority patch-cycle item.
Heap-based buffer overflow in Microsoft Office Access enables local code execution with full system impact when a low-privileged user opens a specially crafted database file. Affected products span Access 2016 through Microsoft 365 Apps for Enterprise, covering the majority of Microsoft Office deployments. Microsoft has released patches across all affected product lines; no public exploit code or active exploitation (CISA KEV) has been identified at time of analysis.
Remote code execution in Microsoft Office exposes unauthenticated network attackers to full system compromise when a target user opens a specially crafted document. The root cause is a heap-based buffer overflow (CWE-122) in Office's document parsing logic, affecting Office 2016 through Microsoft 365 Apps for Enterprise across a defined range of 16.x builds confirmed by EUVD-2026-73711. No public exploit or CISA KEV listing has been identified at time of analysis, but the CVSS 8.8 score with a network attack vector and no required attacker privileges - beyond inducing user file-open interaction - reflects a credible, high-impact threat against the world's most widely deployed office productivity suite.
Heap-based buffer overflow in Microsoft Office enables remote unauthenticated attackers to achieve arbitrary code execution by convincing a target user to open a specially crafted Office document delivered over a network. All major Office perpetual and subscription releases are affected, spanning versions from Office 2016 through Microsoft 365 Apps for Enterprise and LTSC 2024. Vendor-released patches are available via Microsoft Security Response Center; no public exploit code or CISA KEV listing has been identified at time of analysis, though the high-impact, low-complexity CVSS profile warrants prioritized patching in enterprise environments.
External file path control in Microsoft Office Word enables local code execution with full confidentiality, integrity, and availability impact when a target user opens a specially crafted document. All major Office release tracks are affected across Windows and macOS - Office 2016, 2019, 2021 LTSC, LTSC 2024, and Microsoft 365 Apps for Enterprise. No public exploit has been identified at time of analysis, and vendor patches are available through the Office security release channel.
Remote code execution in Microsoft Office Outlook stems from an integer overflow or wraparound condition (CWE-190) that allows an unauthenticated network attacker to execute arbitrary code on a victim's system, achieving full confidentiality, integrity, and availability compromise. The CVSS 3.1 score of 8.8 (High) with vector AV:N/AC:L/PR:N/UI:R reflects low attack complexity and no authentication requirement, though exploitation is gated by a user interaction step. No public exploit code and no CISA KEV listing have been identified at time of analysis, but the attack profile is consistent with phishing-delivered malicious email or attachment campaigns targeting Outlook users.
PowerPoint's improper input validation (CWE-20) exposes local users to high-impact compromise when a maliciously crafted presentation file is opened, with the official CVSS vector asserting high confidentiality, integrity, and availability impact - a notable divergence from the description's characterization as information disclosure only. The attack requires no attacker privileges but mandates user interaction, fitting a phishing-and-open-file threat model. No public exploit code exists and this vulnerability is not listed in the CISA KEV catalog at time of analysis.
Use-after-free memory corruption in Microsoft Office Word enables local code execution when a user opens a specially crafted document. The CVSS vector (AV:L/AC:L/PR:N/UI:R) confirms this is a social-engineering-dependent attack - no system privileges are required, but the victim must open a malicious file, making phishing or drive-by document delivery the likely delivery mechanism. All three impact dimensions (Confidentiality, Integrity, Availability) are rated High, yielding a 7.8 CVSS score; no public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office (365 Apps for Enterprise, Office 2019, Office 2021 LTSC, and Office 2024 LTSC) enables a local attacker with low-privilege credentials to execute arbitrary code with the full confidentiality, integrity, and availability impact of the Office process. The vulnerability (CWE-122) carries a CVSS 3.1 score of 7.8 and requires only local access and a standard user account - no user interaction is needed once the attacker can trigger the vulnerable allocation path. No public exploit code has been identified at time of analysis, and SSVC assessment confirms current exploitation status as none.
Stack-based buffer overflow in Microsoft Office Excel enables local arbitrary code execution when a user opens a specially crafted file. The vulnerability (CWE-121) carries a CVSS 7.8 High score, with high confidentiality, integrity, and availability impact upon successful exploitation. No active exploitation has been confirmed (not listed in CISA KEV), and no public exploit code is identified at time of analysis.
Stack-based buffer overflow in Microsoft Office Excel enables local code execution when a user opens a crafted file. The vulnerability (CWE-121) is triggered through user interaction with malicious content, requiring no privileges on the target system beyond access to run Excel. No public exploit code or CISA KEV listing is identified at time of analysis, though the high-impact CVSS 7.8 score reflects full compromise of confidentiality, integrity, and availability upon successful exploitation.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution with full system-level impact when a victim opens a specially crafted Excel file. The flaw (CWE-122) resides in Excel's file parsing logic, where malformed input causes a heap memory region to be overwritten, redirecting execution flow. No public exploit has been identified at time of analysis, and the vulnerability has not appeared in CISA's Known Exploited Vulnerabilities catalog, though the Microsoft Security Response Center has issued an advisory.
Out-of-bounds read in Microsoft Office Excel enables local code execution when a user opens a specially crafted spreadsheet file. The vulnerability (CWE-125) carries a CVSS 7.8 score with high impact across confidentiality, integrity, and availability, and is reported directly by Microsoft via the MSRC update guide. No public exploit code or CISA KEV listing has been identified at time of analysis, but the low attack complexity (AC:L) indicates reliable exploitability once a working exploit is developed.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a user opens a specially crafted Excel file. The vulnerability triggers during file parsing, allowing an attacker who can deliver a malicious document to execute arbitrary code with the privileges of the logged-in user. No KEV listing or public exploit code has been identified at time of analysis, but the local-execution-via-document vector makes this a meaningful phishing and spear-phishing enabler.
Type confusion (CWE-843) in Microsoft Office Excel enables local code execution when a victim opens a specially crafted file. The CVSS vector (AV:L/AC:L/PR:N/UI:R) confirms the attack is file-based: no attacker privileges are required, but the target user must open a malicious document, making this a high-impact phishing-delivery vector. No public exploit code and no CISA KEV listing are identified at time of analysis, but the full confidentiality, integrity, and availability impact (C:H/I:H/A:H) makes this a critical priority for organizations where Excel is deployed.
Untrusted pointer dereference in Microsoft Office Excel enables local arbitrary code execution when a user opens a crafted document. The flaw (CWE-822) allows an attacker who can deliver a malicious file to achieve full code execution with high confidentiality, integrity, and availability impact on the victim's system. No public exploit has been identified at time of analysis, and Microsoft has not listed this in CISA's Known Exploited Vulnerabilities catalog.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a user opens a specially crafted file, granting full confidentiality, integrity, and availability compromise of the affected system. The CVSS vector (AV:L/AC:L/PR:N/UI:R) confirms this is a document-triggered exploit requiring no attacker privileges but demanding victim interaction - a profile consistent with malicious email attachment or drive-by download campaigns. No public exploit code or CISA KEV listing has been identified at time of analysis, though Excel's ubiquity makes this a high-value target class.
Out-of-bounds write (CWE-787) in Microsoft Office Excel enables local code execution when a user opens a specially crafted Excel file, yielding full confidentiality, integrity, and availability impact at CVSS 7.8. The attack is file-delivery based - typical phishing or drive-by download - requiring no system privileges from the attacker but requiring the victim to open the malicious document. No public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a user opens a specially crafted Excel file. The CVSS vector (AV:L/PR:N/UI:R) confirms the attack requires no system privileges but does require user interaction - the classic malicious-document delivery pattern. Full confidentiality, integrity, and availability compromise results, making this a high-severity threat against any organization reliant on Excel for document workflows. No public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Access enables remote code execution when a victim opens a specially crafted Access database file, with an attacker needing no credentials but depending on user interaction to trigger the flaw. The vulnerability carries a CVSS 3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), meaning successful exploitation yields full loss of confidentiality, integrity, and availability within the Access process context, though the mandatory opening of the malicious file limits automated, hands-off exploitation. Based on available intelligence, no public exploit identified at time of analysis and EPSS scoring was not supplied; the entry appears only in the Microsoft Security Response Center update guide, and no CISA KEV listing or other exploitation signal is present.
Heap-based buffer overflow in Microsoft Office Access lets unauthenticated remote attackers execute arbitrary code in the context of the user who opens a specially crafted Access database (.accdb/.mdb) file. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, 8.8) confirms that no credentials are required and attack complexity is low, but the mandatory user interaction (UI:R) - typically a phishing attachment, download, or shared file - is the gating factor that prevents automated, widespread exploitation; code runs only with the privileges of the user who opened the file. There is confirmed KEV? no - no public exploit identified at time of analysis, no CISA KEV listing, and no EPSS score was supplied, so this is a credible, patchable priority rather than an actively exploited emergency.
Remote code execution in Microsoft Office Access occurs when a victim opens an attacker-supplied, specially crafted Access database file that triggers a heap-based buffer overflow during file parsing (CWE-122). The flaw is rated CVSS 3.1 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H): it is network-deliverable, low-complexity and needs no authentication, but is gated entirely by the requirement that a user open the malicious document, and scope is unchanged so code runs in the victim's user context rather than granting system-wide control. No public exploit code or confirmed active exploitation was identified in the available intelligence at time of analysis.
Microsoft Access (part of Microsoft Office) contains an out-of-bounds read (CWE-125) that can be exploited to execute arbitrary code when a victim opens a specially crafted database file. The CVSS vector (8.8, AV:N/AC:L/PR:N/UI:R) indicates that unauthenticated remote attackers can achieve high confidentiality, integrity, and availability impact, but the required user interaction makes this a serious yet not top-tier emergency. No public exploit code or active exploitation has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Access allows unauthenticated remote attackers to execute code when a victim opens a maliciously crafted Access database, scoring CVSS 8.8. Exploitation requires user interaction (UI:R), so there is no zero-click or server-side vector, and code runs in the context of the user who opens the file, limiting immediate blast radius. No public exploit identified at time of analysis; this is serious but not emergency-tier because the victim must open the attacker-supplied file.
Heap-based buffer overflow in Microsoft Office Access allows an unauthenticated remote attacker to execute code in the security context of the user who opens a specially crafted Access database file. Exploitation is not autonomous despite the AV:N vector: the attacker must deliver the malformed file and persuade the victim to open it (UI:R), and reliable code execution further depends on heap-layout grooming to control the corrupted allocation (AC:H), so any code that runs inherits only the opening user's privileges (S:U). No public exploit code or CISA KEV entry was identified at time of analysis, and no EPSS score was supplied; the assessed risk is mixed-priority given the mandatory user interaction and high attack complexity.
Heap-based buffer overflow in Microsoft Office Access allows unauthenticated remote attackers to execute arbitrary code when a victim opens a maliciously crafted Access database file. The vulnerability requires user interaction (UI:R) but no authentication (PR:N), and successful exploitation grants code execution with the privileges of the current user (S:U). No public exploit code or active exploitation has been identified at time of analysis; however, the high CVSS score (8.8) and low attack complexity make this a significant risk for organizations using affected Access versions.
Heap-based buffer overflow in Microsoft Office Visio enables remote code execution when a victim opens a maliciously crafted Visio drawing file (CVSS 8.8, CWE-122). The attack is unauthenticated (PR:N) and remotely deliverable (AV:N), but requires user interaction (UI:R): the target must have the separately licensed Visio application installed and must be persuaded to open the attacker-supplied file, typically delivered by phishing email or a hosted download. There is no confirmed active exploitation (not listed in CISA KEV) and no public exploit code identified at time of analysis; real-world risk is materially reduced by Protected View, Mark-of-the-Web, attachment blocking, and the fact that Visio is not present in most Office installations.
Heap-based buffer overflow in Microsoft Visio allows remote, unauthenticated attackers to execute arbitrary code in the context of the user who opens a specially crafted Visio document. Exploitation is not zero-click: it requires user interaction (UI:R), with the malicious file typically delivered as an email attachment or download link that the victim must open, and no credentials or special target-side configuration are needed (PR:N). No public exploit code or confirmed active exploitation is identified in the available data, no EPSS score was supplied, and Microsoft's MSRC Update Guide is the authoritative reference for fixes.
Heap-based buffer overflow in Microsoft Office Access allows an unauthenticated remote attacker to execute arbitrary code in the security context of the user who opens a crafted Access database file. Exploitation is gated by user interaction (UI:R) - the victim must open an attacker-supplied file delivered by email, web download, or shared location - with low attack complexity (AC:L) and no credentials required from the attacker (PR:N), and code runs as the invoking user rather than as SYSTEM. Rated 8.8 (C:H/I:H/A:H); no public exploit code and no confirmed active exploitation were identified at time of analysis, and environments that do not install or use Access are not exposed.
Remote code execution in Microsoft Access is possible when a user opens a specially crafted Access file, exploiting a heap-based buffer overflow (CWE-122) to let an unauthenticated attacker execute code in the context of the victim. Affected are systems with Microsoft Access installed; the attack requires user interaction (UI:R in the CVSS vector) and no public exploit code or confirmed active exploitation is identified at time of analysis, though the vendor advisory should be consulted for updates.
Remote code execution in Microsoft Excel allows an unauthorized attacker to execute arbitrary code when a victim opens a crafted spreadsheet, per the vendor advisory for CVE-2026-100212. The issue is a use-after-free (CWE-416) reachable over the network with no privileges required (AV:N/PR:N), but exploitation is gated by user interaction (UI:R) and runs in the security context of the user who opens the file (S:U). No public exploit identified at time of analysis, and the independent assessment rates it a credible prioritization candidate but not an emergency.
Code execution in Microsoft Excel can be triggered when a victim opens or previews an attacker-crafted workbook, exploiting a use-after-free (CWE-416) in file parsing. The flaw is remotely reachable with low complexity and no privileges per CVSS (PR:N), but requires user interaction (UI:R), so exploitation depends on file delivery and social engineering rather than self-propagation. No public exploit was identified at time of analysis and no CISA KEV confirmation was provided; the risk is high-priority but not an automatic emergency given the user-interaction requirement.
Heap-based buffer overflow in Microsoft Excel enables an unauthenticated, remote attacker to execute arbitrary code in the context of the victim user, provided the victim opens or previews a specially crafted Excel workbook (CVSS 8.8, vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). Exploitation depends on social engineering to deliver the malicious file, and default Office protections such as Protected View and Mark-of-the-Web meaningfully reduce real-world risk. No public exploit code or confirmed active exploitation has been identified at the time of analysis, and signals are moderately strong but not top-tier urgent.
Use-after-free memory corruption in Microsoft Office Excel allows remote, unauthenticated attackers to execute arbitrary code in the context of the user who opens a crafted spreadsheet (CVSS 3.1 base 8.8, High; AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). Exploitation is client-side and hinges on user interaction: the victim must open or preview an attacker-supplied Excel document, so delivery depends on a social-engineering lure (email attachment, hosted file, or file-share link) and resulting code runs only at the privilege level of the opening user. No public exploit code and no confirmed active exploitation (CISA KEV) were identified in the available intelligence at time of analysis, and Protected View plus Mark-of-the-Web handling of files from untrusted sources materially constrains realistic exploitation.
Heap-based buffer overflow in Microsoft Office Excel allows a local attacker to execute arbitrary code with the privileges of the victim user by convincing them to open a specially crafted Excel file. The vulnerability spans a wide range of currently supported Office releases - Excel 2016 through Microsoft 365 Apps for Enterprise, plus Office for Mac editions - making the attack surface broad. No public exploit or CISA KEV listing has been identified at time of analysis, but Microsoft has issued patches across all affected channels.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a victim opens a specially crafted Excel file. Affected products span Excel 2016 through Microsoft 365 Apps for Enterprise and LTSC 2024 editions, including Mac variants. No public exploit code or CISA KEV listing has been identified at time of analysis, and Microsoft has released patches across all affected product lines.
Out-of-bounds read in Microsoft Excel's file-parsing engine allows code execution when a victim opens a specially crafted workbook. Affected builds span Excel 2016 through Office LTSC 2024 and their Mac equivalents, making the exposure broad across both perpetual-license and subscription deployments. No public exploit code has been identified at time of analysis, but Microsoft has released patched builds for all affected product lines.
Out-of-bounds read (CWE-125) in Microsoft Office Excel's file-parsing engine enables local code execution when a victim opens a specially crafted spreadsheet. Affects a wide range of Microsoft Office products from version 2016 through LTSC 2024 and Microsoft 365 Apps for Enterprise, on both Windows and Mac platforms. No public exploit identified at time of analysis, but the low attack complexity combined with full confidentiality, integrity, and availability impact makes phishing-delivered document lures a realistic and proven delivery vector.
Use-after-free code execution in Microsoft Excel allows a local unauthenticated attacker to execute arbitrary code at the privilege level of the victim user by enticing them to open a specially crafted workbook file. Affected products span the full current Office portfolio: Excel 2016, Office 2016/2019, Office LTSC 2021/2024 (Windows and Mac), and Microsoft 365 Apps for Enterprise. No public exploit or CISA KEV listing is identified at time of analysis, but Microsoft has released patches addressing all affected version lines.
Stack-based buffer overflow in Microsoft Office Excel enables arbitrary code execution when a user opens a specially crafted workbook. The vulnerability (CWE-121) spans a wide range of Office suites from 2016 through 2024 LTSC on both Windows and macOS. No public exploit code or active exploitation (CISA KEV) has been identified at time of analysis, but the broad affected surface - including Microsoft 365 Apps for Enterprise - makes patching a priority for enterprise environments.
Remote code execution in Microsoft Office Word arises from a heap-based buffer overflow (CWE-122) triggered when a user opens a specially crafted document. The flaw affects a broad swath of Office product lines - Microsoft 365 Apps for Enterprise, Office 2016/2019/LTSC 2021/LTSC 2024 on Windows, and Office for Mac variants - with vendor patches available at specific build thresholds. No public exploit code or CISA KEV listing exists at time of analysis, placing this in the category of patched-but-unconfirmed-exploited, though the enormous deployment footprint and phishing-friendly delivery model elevate real-world priority.
Heap-based buffer overflow in Microsoft Excel enables local code execution with full user-level privileges when a victim opens a specially crafted workbook file. Affected products span the entire current Office portfolio - Excel 2016 through Office LTSC 2024 and Microsoft 365 Apps for Enterprise - on both Windows and macOS. No public exploit code has been identified and this vulnerability is not listed in the CISA KEV catalog at time of analysis, but the broad install base and file-delivery attack path make it a meaningful phishing vector.
Double-free memory corruption (CWE-415) in Microsoft Excel enables local arbitrary code execution across a wide range of Office product lines including Excel 2016, Office 2019, LTSC 2021/2024, and Microsoft 365 Apps for Enterprise. An attacker who delivers a specially crafted Excel workbook and convinces a target user to open it can achieve arbitrary code execution in the user's security context, with high confidentiality, integrity, and availability impact. Vendor-released patches are available for all Windows Office variants; no public exploit and no CISA KEV listing have been identified at the time of analysis.
Integer overflow in Microsoft Excel's file parsing engine allows an unauthenticated attacker who delivers a specially crafted Excel workbook to execute arbitrary code with the privileges of the victim user upon file opening. The vulnerability spans Excel 2016 through Microsoft 365 Apps for Enterprise and LTSC variants on both Windows and macOS. No public exploit code has been identified at time of analysis, and Microsoft has issued patches across all affected product lines.
Heap-based buffer overflow (CWE-122) in Microsoft Office Excel allows a local, unauthenticated attacker to execute arbitrary code with the privileges of the victim user by convincing them to open a specially crafted Excel file. The vulnerability affects a broad range of Office releases spanning Excel 2016 through Office LTSC 2024, on both Windows and macOS. Microsoft has released patches addressing this flaw; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a victim opens a specially crafted Excel file. Affected products span nearly every current Office release line - Excel 2016, Office 2019, Office LTSC 2021 and 2024 (Windows and Mac), Microsoft 365 Apps for Enterprise, Office 365 for Mac, and Office Online Server. An attacker who tricks a user into opening a malicious workbook can achieve full code execution at the victim's privilege level, with high confidentiality, integrity, and availability impact. No public exploit code has been identified at time of analysis, and no CISA KEV listing exists.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution across nine distinct Office SKUs ranging from Excel 2016 through Microsoft 365 Apps for Enterprise. Exploitation requires a victim to open a specially crafted Excel file, making phishing and malicious-document delivery the primary attack vectors. Microsoft has released patched builds for all affected Windows variants; Mac-platform fixed builds should be confirmed via the MSRC advisory. No public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a user opens a specially crafted workbook. The vulnerability (CWE-122) affects all major Office perpetual and subscription editions across Windows and Mac, spanning Excel 2016 through Microsoft 365 Apps for Enterprise. No public exploit code has been identified at time of analysis, but the file-open trigger and full C/I/A impact make this a high-priority patch for organizations relying on email-delivered spreadsheets.
Stack-based buffer overflow in Microsoft Office Excel enables arbitrary code execution at the current user's privilege level when a victim opens a specially crafted workbook file. The vulnerability spans Excel 2016 through Microsoft 365 Apps for Enterprise and LTSC 2024 across both Windows and Mac platforms, making the potential victim population extremely large. Microsoft has released patches via MSRC; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a victim opens a specially crafted Excel file. Affected products span the full Office portfolio - Excel 2016, Office 2019, 2021, 2024 LTSC editions, and Microsoft 365 Apps for Enterprise on both Windows and Mac. An attacker who can convince a user to open a malicious workbook can achieve full C:H/I:H/A:H compromise of the victim's session. No public exploit or CISA KEV listing has been identified at time of analysis, and Microsoft has released patched builds.
Stack-based buffer overflow in Microsoft Office Excel enables local code execution when a user opens a specially crafted workbook, affecting all major Office product lines from Excel 2016 through Office LTSC 2024 and Microsoft 365 Apps for Enterprise on both Windows and Mac platforms. The vulnerability carries a CVSS 7.8 score reflecting high CIA impact against the Office process, with mandatory user interaction (opening the malicious file) as the sole prerequisite. Microsoft has released patches for all supported versions; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution across all major Office release tracks when a victim opens a maliciously crafted spreadsheet file. The vulnerability is rooted in improper heap memory management during Excel's file parsing routines (CWE-122), resulting in full compromise of confidentiality, integrity, and availability on the victim system. No public exploit code has been identified at time of analysis, but the breadth of affected versions - spanning Office 2016 through Microsoft 365 and Mac variants - makes this a high-priority patch target for enterprise environments.
Remote code execution in Microsoft Office Publisher allows a network-based attacker to execute arbitrary code on a victim's machine by exploiting unsafe deserialization of untrusted data in Publisher file parsing. Affected products span the full Office ecosystem including Microsoft 365 Apps for Enterprise, Office LTSC 2024/2021, Publisher 2016, and Office 2019. Exploitation requires user interaction - the victim must open a crafted Publisher file - but no authentication or elevated privileges are needed from the attacker's side. No public exploit or active exploitation (CISA KEV) has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Word enables unauthenticated remote attackers to achieve arbitrary code execution at the privilege level of the target user. The vulnerability (CWE-122) is triggered when a victim opens a specially crafted Word document, covering Word 2016, Office 2019, Office LTSC 2021/2024, and Microsoft 365 Apps for Enterprise across both Windows and Mac platforms. Microsoft has released patches; no public exploit code or CISA KEV listing has been identified at time of analysis, though the broad product coverage and high CVSS of 8.8 make this a priority patching target.
Remote code execution in Microsoft 365 Apps for Enterprise PowerPoint (versions below 16.0.20326.20136) is possible via a use-after-free (CWE-416) triggered when a user opens a specially crafted PowerPoint file. The CVSS 8.8 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) reflects full CIA impact achievable without attacker authentication, requiring only that the victim opens a malicious document. No public exploit code or CISA KEV listing has been confirmed at time of analysis, but Microsoft has released a patch and the memory corruption primitive makes this a high-priority update for enterprise environments.
Remote code execution in Microsoft Office Word via a double-free memory corruption flaw (CWE-415) allows a network-accessible, unauthenticated attacker to achieve full system compromise with high confidentiality, integrity, and availability impact. The vulnerability spans seven distinct product/version combinations - Word 2016, Office 2019, LTSC 2021, LTSC 2024, Microsoft 365 Apps for Enterprise on Windows, and multiple Mac editions - making the affected surface unusually broad. No public exploit code or CISA KEV listing has been identified at time of analysis, though the low attack complexity and wide deployment footprint make rapid patching a clear priority.
Remote code execution in Microsoft Office Word via a heap-based buffer overflow (CWE-122) allows an unauthenticated network attacker to fully compromise a victim system upon opening a crafted document. All major Office licensing tracks are affected on both Windows and macOS, spanning Office 2016 through Microsoft 365 Apps for Enterprise. No CISA KEV listing or public exploit code is referenced in available data, but the low-complexity, no-privileges-required vector with full confidentiality, integrity, and availability impact makes this a critical priority for enterprise patch cycles.
Remote code execution via use-after-free (CWE-416) in Microsoft Office Outlook allows a network-based attacker to execute arbitrary code on a victim's system when the user opens or previews malicious content. The vulnerability affects a broad range of Microsoft Office versions across Windows and macOS, including Microsoft 365 Apps for Enterprise, Office LTSC 2021/2024, Office 2019, and Word 2016. No public exploit identified at time of analysis, but a vendor patch is available; the CVSS score of 8.8 (AV:N/AC:L/PR:N/UI:R) reflects the high severity, tempered only by the requirement for user interaction.
Out-of-bounds write (CWE-787) in multiple Microsoft Office versions enables remote code execution when a victim opens a specially crafted Office document. The vulnerability affects a broad matrix of products spanning Microsoft 365 Apps for Enterprise, Office LTSC 2021/2024, Office 2016/2019, and their Mac counterparts, covering virtually the entire modern Office product line. Vendor patches have been released via MSRC; no public exploit or CISA KEV listing has been identified at time of analysis, but the network-deliverable, low-complexity nature and full C/I/A impact make this a high-priority patching target.
Heap-based buffer overflow in Microsoft Office Word's document parsing engine enables remote unauthenticated attackers to execute arbitrary code on target systems when a user opens a specially crafted document. The vulnerability affects a wide range of Microsoft Office releases - Word 2016, Office 2019, LTSC 2021, LTSC 2024, Office 365 for Mac, and Microsoft 365 Apps for Enterprise - making the attack surface extremely broad. Microsoft has released patches across all affected product lines; no public exploit or CISA KEV listing has been identified at time of analysis, though UI:R interaction remains the sole barrier to exploitation.
Remote code execution in Microsoft Outlook stems from CWE-908 (use of uninitialized resource), enabling a network-based attacker to execute arbitrary code on a victim's machine without requiring authentication. The CVSS vector (PR:N/UI:R) indicates the attack requires no attacker credentials but does require user interaction - consistent with a malicious email or attachment that triggers uninitialized memory access when opened or previewed. All major Outlook perpetual and subscription editions from 2016 through Microsoft 365 Apps for Enterprise are affected, making the attack surface extremely broad across enterprise environments. No public exploit or KEV listing has been identified at time of analysis.
Out-of-bounds read in Microsoft Office Excel enables remote code execution when a victim opens a crafted Excel workbook, achieving full C/I/A compromise on the target system. The vulnerability spans every major Office product line from Excel 2016 through Microsoft 365 Apps for Enterprise on both Windows and macOS. Vendor-released patches are available for all Windows product lines with specific fixed builds enumerated; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Word enables remote unauthenticated code execution when a victim opens a specially crafted document. Affects the full breadth of Office deployments - Microsoft 365 Apps for Enterprise, Office 2019, Office LTSC 2021/2024, Word 2016, and their Mac equivalents - making the attack surface extremely wide. No public exploit identified at time of analysis, but the CVSS 8.8 vector (AV:N/AC:L/PR:N/UI:R) with full C/I/A impact places this firmly in priority patching territory for enterprise environments.
Use-after-free in Microsoft Word enables remote code execution when a victim opens or interacts with a specially crafted document. The CVSS vector (AV:N/AC:L/PR:N/UI:R) reflects delivery over the network with no authentication required and only a single user interaction - opening a malicious file - as the prerequisite. Full confidentiality, integrity, and availability compromise is achievable on the affected endpoint, spanning Microsoft Word 2016, Office 2019, Office LTSC 2021/2024, Microsoft 365 Apps for Enterprise, and their Mac counterparts. No public exploit or CISA KEV listing has been identified at time of analysis; vendor patch is available.
Heap-based buffer overflow in Microsoft Word's document-parsing engine, arising from a numeric truncation error, enables remote code execution when a user opens a specially crafted Word document. The flaw spans a wide matrix of Office SKUs on both Windows and Mac - including Office 2016, 2019, LTSC 2021/2024, Microsoft 365 Apps for Enterprise, and Mac variants - and carries CVSS 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), reflecting full compromise with the only friction being the required user interaction. No public exploit code or CISA KEV listing has been identified at time of analysis, but the ubiquity of the Office install base makes this a high-priority patching target.
Remote code execution in Microsoft Office Word exposes virtually every Windows and macOS Office release channel - Word 2016, Office 2019, LTSC 2021/2024, 365 Apps for Enterprise, and Office for Mac - to full system compromise via a specially crafted document. The heap-based buffer overflow (CWE-122) fires during document parsing with no authentication required from the attacker, only standard user interaction to open the malicious file, yielding C:H/I:H/A:H impact under a low-complexity attack path. Microsoft has issued patches across all Windows release branches and flags macOS editions as affected; no public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Word (Microsoft 365 Apps for Enterprise, Office 2016, Office 2019, Office LTSC 2021, Office LTSC 2024, and the corresponding macOS Office builds) enables arbitrary code execution in the security context of the user who opens an attacker-crafted Word document. The attack is client-side: a victim must open or preview a malicious file delivered by email, web download, or a shared location, and no authentication or elevated privileges on the target are required (PR:N), though our assessment sets the interaction requirement at UI:R despite the UI:N flag in the published vector. No public exploit code has been identified at time of analysis and EPSS is low (0.95%, 59th percentile), but CISA SSVC rates the technical impact as total with automatable exploitation and vendor patches are available, making this a genuinely notable issue rather than an emergency.
Remote code execution in Microsoft Office Outlook stems from a heap-based buffer overflow (CWE-122) that lets an unauthenticated network attacker run arbitrary code, per Microsoft's MSRC advisory and CVSS 9.8 (AV:N/AC:L/PR:N/UI:N). The flaw affects Office 2019, Office LTSC 2021/2024, Microsoft 365 Apps for Enterprise, Word 2016, and Office for Mac builds; Microsoft has released fixed builds. No public exploit identified at time of analysis, but the critical severity and no-interaction network vector make it a high patch priority.
Remote code execution in Microsoft Office Word via a use-after-free (CWE-416) memory corruption flaw allows an unauthenticated network attacker to compromise a target system when the victim opens a specially crafted document. All major release tracks are affected - Office 2019, LTSC 2021, LTSC 2024, and Microsoft 365 Apps for Enterprise on both Windows and macOS - with fixed builds published by Microsoft. No CISA KEV listing or public exploit has been identified at time of analysis, but the CVSS 8.8 PR:N/UI:R profile is characteristic of document-delivery RCE bugs historically prioritized by both criminal and nation-state actors for initial access.
Heap-based buffer overflow in Microsoft Office allows unauthenticated remote attackers to execute arbitrary code on a victim's system when the victim opens a specially crafted Office document. Multiple product lines are affected, including Microsoft 365 Apps for Enterprise, Office LTSC 2021/2024, Office 2016/2019, and Mac variants of each. With a CVSS score of 8.8 and full confidentiality, integrity, and availability impact, this is a high-severity code execution path; no public exploit code or CISA KEV listing has been identified at time of analysis, and a vendor-released patch is available.
Stack-based buffer overflow (CWE-121) in Microsoft Office Word enables a remote unauthenticated attacker to execute arbitrary code on a victim's machine by delivering a specially crafted Word document and inducing the target to open it. The vulnerability spans a wide swath of Office product lines - from Word 2016 through Office LTSC 2024 and Microsoft 365 Apps for Enterprise - on both Windows and macOS platforms. Microsoft has released patches across Windows product lines; no public exploit has been identified at time of analysis and the vulnerability is not listed in the CISA KEV catalog.
Remote code execution in Microsoft Office Word allows an unauthenticated network attacker to execute arbitrary code on a victim's machine by delivering a specially crafted document that triggers a null pointer dereference. Affected versions span Microsoft Word 2016, Office 2019, Office LTSC 2021, Office LTSC 2024, Microsoft 365 Apps for Enterprise, and Office LTSC for Mac variants. Microsoft has released patches across all affected product lines; no public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow (CWE-122) in multiple Microsoft Office versions enables remote code execution when a victim opens a specially crafted document. The CVSS vector (AV:N/AC:H/PR:N/UI:R) confirms network-based delivery without attacker authentication, but exploitation requires high attack complexity and active user interaction - consistent with a maliciously crafted Office file that triggers a memory corruption condition in Office's document parsing subsystem. Affected builds span Office 2019, LTSC 2021, LTSC 2024, Microsoft 365 Apps for Enterprise, and Mac-platform variants; patched build numbers are available for Windows-based SKUs per EUVD-2026-73290, while Mac SKU fix versions are not specified in available data.
Heap-based buffer overflow in Microsoft Office Word enables remote unauthenticated attackers to achieve full code execution (C:H/I:H/A:H) by delivering a specially crafted Word document to a target user across all major Office suite versions on both Windows and macOS. Affected products span Microsoft 365 Apps for Enterprise, Office 2019, Office LTSC 2021, Office LTSC 2024, and Word 2016, with fixed version thresholds confirmed by EUVD. No public exploit or CISA KEV listing identified at time of analysis, but the network-vector, no-auth delivery model is highly attractive for phishing-based initial access campaigns. Vendor-released patch is available via Microsoft Security Response Center.
Heap-based buffer overflow in Microsoft Office Word's document-parsing engine enables remote code execution when a victim opens a specially crafted file, yielding full confidentiality, integrity, and availability compromise of the user's session. Affected products span Microsoft 365 Apps for Enterprise, Office 2019, Office LTSC 2021, Office LTSC 2024, Word 2016, and corresponding macOS editions across both x86 and x64 architectures. No public exploit identified at time of analysis, but the AV:N/PR:N/UI:R CVSS pattern is historically associated with rapid phishing-campaign weaponization for Office document vulnerabilities.
Remote code execution via use-after-free in Microsoft Office PowerPoint enables a network-positioned, unauthenticated attacker to execute arbitrary code on a victim's system when the victim opens a crafted PowerPoint file. The flaw spans the entire current Office product family including Microsoft 365 Apps for Enterprise, Office LTSC 2021/2024, PowerPoint 2016, Office 2019, and their Mac counterparts. No public exploit code or active CISA KEV listing has been identified at time of analysis, but the broad product coverage and lack of privilege requirements make this a high-priority patch target.
Heap-based buffer overflow (CWE-122) in Microsoft Office Access enables network-delivered remote code execution across six Microsoft Office product lines. When a victim opens a maliciously crafted Access database file delivered over a network, the overflow corrupts heap memory and allows an attacker to execute arbitrary code with the privileges of the logged-in user. No public exploit code or CISA KEV listing has been identified at time of analysis, and Microsoft has released patched builds for all affected product lines.
Use-after-free in Microsoft Office PowerPoint enables remote code execution when a victim opens a specially crafted PowerPoint document. The vulnerability affects PowerPoint 2016, 2019, Office LTSC 2021, LTSC 2024, Microsoft 365 Apps for Enterprise, and Office for Mac across multiple build versions, spanning virtually the entire active Office install base. Vendor patches have been released; no public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Word enables remote code execution across all currently-supported Office editions when a victim opens a specially crafted document. Affecting Microsoft 365 Apps for Enterprise, Office 2016 through 2024 LTSC on both x86 and x64 platforms, the vulnerability requires no attacker privileges but depends on user interaction - the classic malicious-document delivery model. No public exploit code or CISA KEV listing has been identified at time of analysis, though the CVSS 8.8 rating, full confidentiality/integrity/availability impact, and the near-universal enterprise footprint of Microsoft Office make this a high-priority patching candidate.
Stack-based buffer overflow in Microsoft Office Word's document parsing engine allows remote unauthenticated attackers to execute arbitrary code with the privileges of the victim user when a specially crafted Word document is opened. The flaw (CWE-121) spans Microsoft 365 Apps for Enterprise, Office 2019, Office LTSC 2021, Office LTSC 2024, and Word 2016 on both Windows and macOS. Microsoft has released patched builds; no public exploit code and no CISA KEV listing have been identified at time of analysis.
Remote code execution is possible in Microsoft Office Publisher across multiple Office suite versions when a victim opens a maliciously crafted Publisher document. The root cause is an integer overflow or wraparound (CWE-190) in the file-parsing subsystem, which typically produces an understated buffer allocation that an attacker can exploit to corrupt heap memory and redirect execution. Affected releases span Publisher 2016 through Microsoft 365 Apps for Enterprise; vendor-released patches are available for all affected versions, and no public exploit code or CISA KEV listing has been identified at time of analysis.
Out-of-bounds read in Microsoft Office (2016 through 365 Apps for Enterprise and LTSC 2024) enables an unauthenticated remote attacker to disclose sensitive memory contents over a network, per the provided CVSS vector. Affected products span both perpetual-license and subscription editions across x64 and x86 architectures. No public exploit code or active exploitation (CISA KEV) has been identified at time of analysis, and Microsoft has released patches across all affected version lines.
Stack-based buffer overflow in Microsoft Word (CWE-121) enables remote code execution by enticing a user to open a maliciously crafted document, with full compromise of confidentiality, integrity, and availability. Affected products span Office 2019, 2021, and 2024 LTSC on both Windows (x86/x64) and macOS, as well as Microsoft 365 Apps for Enterprise and Word 2016. Microsoft has released patches across all affected product lines; no public exploit code has been identified and CISA KEV confirmation is absent at time of analysis.
Stack-based buffer overflow in Microsoft Word's document-parsing engine enables network-delivered remote code execution with full system impact across all current Microsoft Office product lines on Windows and macOS. The vulnerability (CWE-121) is triggered when a user opens a specially crafted Word document, overflowing a fixed-size stack buffer and allowing an attacker to hijack control flow and execute arbitrary code in the context of the logged-in user. Affected versions span Word 2016 through Microsoft 365 Apps for Enterprise and LTSC editions on both x86/x64 Windows and macOS; patches are available per vendor advisory, and no public exploit code has been identified at time of analysis.
Remote code execution in Microsoft Office PowerPoint stems from a use-after-free memory corruption flaw (CWE-416) that enables network-based attackers to execute arbitrary code when a victim opens a crafted presentation file. All major Office editions are affected - Microsoft 365 Apps for Enterprise, Office LTSC 2021 and 2024, Office 2019, PowerPoint 2016, and multiple macOS variants - spanning a broad enterprise and consumer installed base. No public exploit or CISA KEV listing has been identified at time of analysis; Microsoft has released patches across all affected Windows product lines.
Heap-based buffer overflow in Microsoft Office Word's document parsing engine enables an unauthenticated remote attacker to achieve full code execution on a victim's system when a specially crafted Word document is opened. The flaw spans all major currently-supported Office release channels on both Windows and macOS, including Microsoft 365 Apps for Enterprise, Office 2019/2021/2024 LTSC, Word 2016, and macOS editions. No public exploit or CISA KEV listing has been identified at time of analysis, but the low attack complexity, broad product footprint, and well-understood Office document exploitation tradecraft make this a high-priority patching candidate.
Remote code execution in Microsoft Office via a use-after-free (CWE-416) memory corruption flaw allows a network-adjacent or remote attacker to execute arbitrary code on the victim's machine. The attack is client-side: the attacker delivers a maliciously crafted Office document, which when opened by the user triggers the UAF condition. Affected products span the full Office family including LTSC 2021, LTSC 2024, Office 2019, Microsoft 365 Apps for Enterprise, and Mac variants; a vendor patch is available.
Heap-based buffer overflow in Microsoft Office Outlook enables remote unauthenticated attackers to execute arbitrary code on the victim's system across multiple current Office product lines. The CVSS 8.8 vector (AV:N/AC:L/PR:N/UI:R) reflects network-accessible exploitation requiring no privilege, with the sole limiting gate being user interaction-likely opening or previewing a crafted message. No active exploitation is confirmed via CISA KEV and no public exploit code is known at time of analysis; Microsoft has released patched builds across all affected product lines.
Stack-based buffer overflow in Microsoft Access enables remote code execution when a user opens a specially crafted database file, delivering full confidentiality, integrity, and availability compromise on the vulnerable host. Affected products span all current Microsoft Office release trains - Access 2016, Office 2019, Office LTSC 2021, Office LTSC 2024, and Microsoft 365 Apps for Enterprise - representing a broad enterprise attack surface. Microsoft has released patches via its standard update channel; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow (CWE-122) in Microsoft Office Word enables unauthenticated remote code execution when a victim opens a specially crafted document. All currently supported Office product lines are affected across Windows (x86/x64) and macOS, including Microsoft 365 Apps for Enterprise, Office 2016, 2019, 2021 LTSC, 2024 LTSC, and Microsoft 365 for Mac. No public exploit code or CISA KEV listing has been identified at time of analysis, but the breadth of affected products and full C/I/A impact make this a high-priority patching item across virtually all enterprise environments.
Heap-based buffer overflow in Microsoft Office Access enables remote code execution when a user opens a specially crafted Access database file. The CVSS 8.8 vector (AV:N/AC:L/PR:N/UI:R) confirms unauthenticated network delivery requiring only a single user interaction - consistent with a malicious file attachment or download attack pattern. No public exploit code or CISA KEV listing has been identified at time of analysis, but the full-triad impact (C:H/I:H/A:H) and broad affected version range spanning Office 2016 through Microsoft 365 Apps make this a high-priority patch-cycle item.
Heap-based buffer overflow in Microsoft Office Access enables local code execution with full system impact when a low-privileged user opens a specially crafted database file. Affected products span Access 2016 through Microsoft 365 Apps for Enterprise, covering the majority of Microsoft Office deployments. Microsoft has released patches across all affected product lines; no public exploit code or active exploitation (CISA KEV) has been identified at time of analysis.
Remote code execution in Microsoft Office exposes unauthenticated network attackers to full system compromise when a target user opens a specially crafted document. The root cause is a heap-based buffer overflow (CWE-122) in Office's document parsing logic, affecting Office 2016 through Microsoft 365 Apps for Enterprise across a defined range of 16.x builds confirmed by EUVD-2026-73711. No public exploit or CISA KEV listing has been identified at time of analysis, but the CVSS 8.8 score with a network attack vector and no required attacker privileges - beyond inducing user file-open interaction - reflects a credible, high-impact threat against the world's most widely deployed office productivity suite.
Heap-based buffer overflow in Microsoft Office enables remote unauthenticated attackers to achieve arbitrary code execution by convincing a target user to open a specially crafted Office document delivered over a network. All major Office perpetual and subscription releases are affected, spanning versions from Office 2016 through Microsoft 365 Apps for Enterprise and LTSC 2024. Vendor-released patches are available via Microsoft Security Response Center; no public exploit code or CISA KEV listing has been identified at time of analysis, though the high-impact, low-complexity CVSS profile warrants prioritized patching in enterprise environments.
External file path control in Microsoft Office Word enables local code execution with full confidentiality, integrity, and availability impact when a target user opens a specially crafted document. All major Office release tracks are affected across Windows and macOS - Office 2016, 2019, 2021 LTSC, LTSC 2024, and Microsoft 365 Apps for Enterprise. No public exploit has been identified at time of analysis, and vendor patches are available through the Office security release channel.
Remote code execution in Microsoft Office Outlook stems from an integer overflow or wraparound condition (CWE-190) that allows an unauthenticated network attacker to execute arbitrary code on a victim's system, achieving full confidentiality, integrity, and availability compromise. The CVSS 3.1 score of 8.8 (High) with vector AV:N/AC:L/PR:N/UI:R reflects low attack complexity and no authentication requirement, though exploitation is gated by a user interaction step. No public exploit code and no CISA KEV listing have been identified at time of analysis, but the attack profile is consistent with phishing-delivered malicious email or attachment campaigns targeting Outlook users.
PowerPoint's improper input validation (CWE-20) exposes local users to high-impact compromise when a maliciously crafted presentation file is opened, with the official CVSS vector asserting high confidentiality, integrity, and availability impact - a notable divergence from the description's characterization as information disclosure only. The attack requires no attacker privileges but mandates user interaction, fitting a phishing-and-open-file threat model. No public exploit code exists and this vulnerability is not listed in the CISA KEV catalog at time of analysis.
Use-after-free memory corruption in Microsoft Office Word enables local code execution when a user opens a specially crafted document. The CVSS vector (AV:L/AC:L/PR:N/UI:R) confirms this is a social-engineering-dependent attack - no system privileges are required, but the victim must open a malicious file, making phishing or drive-by document delivery the likely delivery mechanism. All three impact dimensions (Confidentiality, Integrity, Availability) are rated High, yielding a 7.8 CVSS score; no public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office (365 Apps for Enterprise, Office 2019, Office 2021 LTSC, and Office 2024 LTSC) enables a local attacker with low-privilege credentials to execute arbitrary code with the full confidentiality, integrity, and availability impact of the Office process. The vulnerability (CWE-122) carries a CVSS 3.1 score of 7.8 and requires only local access and a standard user account - no user interaction is needed once the attacker can trigger the vulnerable allocation path. No public exploit code has been identified at time of analysis, and SSVC assessment confirms current exploitation status as none.
Stack-based buffer overflow in Microsoft Office Excel enables local arbitrary code execution when a user opens a specially crafted file. The vulnerability (CWE-121) carries a CVSS 7.8 High score, with high confidentiality, integrity, and availability impact upon successful exploitation. No active exploitation has been confirmed (not listed in CISA KEV), and no public exploit code is identified at time of analysis.
Stack-based buffer overflow in Microsoft Office Excel enables local code execution when a user opens a crafted file. The vulnerability (CWE-121) is triggered through user interaction with malicious content, requiring no privileges on the target system beyond access to run Excel. No public exploit code or CISA KEV listing is identified at time of analysis, though the high-impact CVSS 7.8 score reflects full compromise of confidentiality, integrity, and availability upon successful exploitation.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution with full system-level impact when a victim opens a specially crafted Excel file. The flaw (CWE-122) resides in Excel's file parsing logic, where malformed input causes a heap memory region to be overwritten, redirecting execution flow. No public exploit has been identified at time of analysis, and the vulnerability has not appeared in CISA's Known Exploited Vulnerabilities catalog, though the Microsoft Security Response Center has issued an advisory.
Out-of-bounds read in Microsoft Office Excel enables local code execution when a user opens a specially crafted spreadsheet file. The vulnerability (CWE-125) carries a CVSS 7.8 score with high impact across confidentiality, integrity, and availability, and is reported directly by Microsoft via the MSRC update guide. No public exploit code or CISA KEV listing has been identified at time of analysis, but the low attack complexity (AC:L) indicates reliable exploitability once a working exploit is developed.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a user opens a specially crafted Excel file. The vulnerability triggers during file parsing, allowing an attacker who can deliver a malicious document to execute arbitrary code with the privileges of the logged-in user. No KEV listing or public exploit code has been identified at time of analysis, but the local-execution-via-document vector makes this a meaningful phishing and spear-phishing enabler.
Type confusion (CWE-843) in Microsoft Office Excel enables local code execution when a victim opens a specially crafted file. The CVSS vector (AV:L/AC:L/PR:N/UI:R) confirms the attack is file-based: no attacker privileges are required, but the target user must open a malicious document, making this a high-impact phishing-delivery vector. No public exploit code and no CISA KEV listing are identified at time of analysis, but the full confidentiality, integrity, and availability impact (C:H/I:H/A:H) makes this a critical priority for organizations where Excel is deployed.
Untrusted pointer dereference in Microsoft Office Excel enables local arbitrary code execution when a user opens a crafted document. The flaw (CWE-822) allows an attacker who can deliver a malicious file to achieve full code execution with high confidentiality, integrity, and availability impact on the victim's system. No public exploit has been identified at time of analysis, and Microsoft has not listed this in CISA's Known Exploited Vulnerabilities catalog.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a user opens a specially crafted file, granting full confidentiality, integrity, and availability compromise of the affected system. The CVSS vector (AV:L/AC:L/PR:N/UI:R) confirms this is a document-triggered exploit requiring no attacker privileges but demanding victim interaction - a profile consistent with malicious email attachment or drive-by download campaigns. No public exploit code or CISA KEV listing has been identified at time of analysis, though Excel's ubiquity makes this a high-value target class.
Out-of-bounds write (CWE-787) in Microsoft Office Excel enables local code execution when a user opens a specially crafted Excel file, yielding full confidentiality, integrity, and availability impact at CVSS 7.8. The attack is file-delivery based - typical phishing or drive-by download - requiring no system privileges from the attacker but requiring the victim to open the malicious document. No public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a user opens a specially crafted Excel file. The CVSS vector (AV:L/PR:N/UI:R) confirms the attack requires no system privileges but does require user interaction - the classic malicious-document delivery pattern. Full confidentiality, integrity, and availability compromise results, making this a high-severity threat against any organization reliant on Excel for document workflows. No public exploit or CISA KEV listing has been identified at time of analysis.