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Excel

282 CVEs product

Monthly

CVE-2026-70328 MEDIUM PATCH Exploit Unlikely This Month

Out-of-bounds read in Microsoft Office Excel enables remote information disclosure when a user opens a specially crafted spreadsheet. The CVSS vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N) confirms that an unauthenticated network-based attacker can trigger the flaw, but only after social engineering a victim into opening a malicious file. No public exploit code and no CISA KEV listing have been identified at time of analysis; Microsoft has released patches across all affected Office product lines.

Information Disclosure Buffer Overflow Microsoft 365 Apps Excel +4
NVD
CVSS 3.1
6.5
EPSS
0.9%
CVE-2026-70327 MEDIUM PATCH Exploit Unlikely This Month

Out-of-bounds read in Microsoft Excel exposes sensitive memory contents over a network to unauthenticated remote attackers, resulting in high-confidence information disclosure (C:H). Exploitation requires user interaction - specifically, opening a crafted Excel document - placing this firmly in the phishing/malicious-attachment delivery class. No active exploitation has been confirmed (not listed in CISA KEV), and no public exploit code has been identified at the time of analysis, though the patch is available and should be applied promptly given the ubiquity of the affected product across enterprise environments.

Information Disclosure Buffer Overflow Microsoft 365 Apps Excel +4
NVD
CVSS 3.1
6.5
EPSS
0.9%
CVE-2026-68817 HIGH PATCH Exploit Unlikely This Week

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 Overflow Buffer Overflow Microsoft 365 Apps Excel +4
NVD VulDB
CVSS 3.1
7.8
EPSS
0.4%
CVE-2026-68816 HIGH PATCH NEWS Exploit Unlikely This Week

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.

Stack Overflow Buffer Overflow Microsoft 365 Apps Excel +4
NVD
CVSS 3.1
7.8
EPSS
0.3%
CVE-2026-68815 HIGH PATCH Exploit Unlikely This Week

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.

Microsoft Heap Overflow Buffer Overflow 365 Apps Excel +4
NVD VulDB
CVSS 3.1
7.8
EPSS
0.3%
CVE-2026-68814 HIGH PATCH Exploit Unlikely This Week

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.

Information Disclosure Buffer Overflow Microsoft 365 Apps Excel +4
NVD VulDB
CVSS 3.1
7.8
EPSS
0.4%
CVE-2026-68812 HIGH PATCH Exploit Unlikely This Week

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.

Microsoft Heap Overflow Buffer Overflow 365 Apps Excel +4
NVD VulDB
CVSS 3.1
7.8
EPSS
0.4%
CVE-2026-68811 HIGH PATCH Exploit Unlikely This Week

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.

Memory Corruption Authentication Bypass Microsoft 365 Apps Excel +4
NVD
CVSS 3.1
7.8
EPSS
0.3%
CVE-2026-68810 HIGH PATCH Exploit Unlikely This Week

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.

Authentication Bypass Microsoft 365 Apps Excel Microsoft 365 +3
NVD
CVSS 3.1
7.8
EPSS
0.3%
CVE-2026-68808 MEDIUM PATCH Exploit Unlikely This Month

Out-of-bounds read in Microsoft Excel exposes process memory to local information disclosure across a wide range of Office versions, from Excel 2016 through Microsoft 365 Apps for Enterprise and multiple LTSC releases on both Windows and macOS. The CVSS 3.1 vector (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N) confirms exploitation requires the victim to open a specially crafted spreadsheet file, making phishing-delivered documents the realistic delivery mechanism. 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.

Information Disclosure Buffer Overflow Microsoft 365 Apps Excel +4
NVD
CVSS 3.1
5.5
EPSS
0.4%
CVE-2026-68807 HIGH PATCH Exploit Unlikely This Week

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.

Microsoft Heap Overflow Buffer Overflow 365 Apps Excel +4
NVD VulDB
CVSS 3.1
7.8
EPSS
0.3%
CVE-2026-68806 HIGH PATCH Exploit Unlikely This Week

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.

Memory Corruption Buffer Overflow Microsoft 365 Apps Excel +4
NVD
CVSS 3.1
7.8
EPSS
0.4%
CVE-2026-68805 HIGH PATCH Exploit Unlikely This Week

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.

Microsoft Heap Overflow Buffer Overflow 365 Apps Excel +4
NVD VulDB
CVSS 3.1
7.8
EPSS
0.3%
CVE-2026-68804 HIGH PATCH NEWS Exploit Unlikely This Week

Heap-based buffer overflow in Microsoft Office Excel enables local code execution with full system impact when a victim opens a maliciously crafted workbook. The root cause is a numeric truncation error (CWE-122) in Excel's file parsing logic, where an integer value is truncated before being used to size a heap allocation, resulting in an undersized buffer that can be overflowed. No public exploit code has been identified at time of analysis, and there is no CISA KEV listing, but the high CVSS score of 7.8 and full confidentiality, integrity, and availability impact make this a meaningful risk for organizations relying on Excel file workflows.

Microsoft Heap Overflow Buffer Overflow 365 Apps Excel +4
NVD VulDB
CVSS 3.1
7.8
EPSS
0.4%
CVE-2026-68803 HIGH PATCH Exploit Unlikely This Week

Type confusion (CWE-843) in Microsoft Office Excel enables local code execution by an unauthenticated attacker when a victim opens a specially crafted Excel document. The CVSS:3.1 vector (AV:L/AC:L/PR:N/UI:R) confirms this is a file-borne attack requiring user interaction but no attacker privileges, with full High/High/High C/I/A impact. No public exploit code or CISA KEV listing has been identified at time of analysis, though the memory corruption tag suggests the type confusion leads to exploitable heap or stack corruption.

Memory Corruption Authentication Bypass Microsoft 365 Apps Excel +4
NVD VulDB
CVSS 3.1
7.8
EPSS
0.3%
CVE-2026-68802 MEDIUM PATCH Exploit Unlikely This Month

Out-of-bounds read (CWE-125) in Microsoft Excel triggers information disclosure when a victim opens a specially crafted spreadsheet file, exposing potentially sensitive memory contents to a local attacker. The flaw spans multiple Office product lines - Excel 2016, Office 2019, Office LTSC 2021/2024, Microsoft 365 Apps for Enterprise, and corresponding Mac variants - with high confidentiality impact but no integrity or availability consequences. No public exploit has been identified and SSVC confirms no known exploitation; a vendor patch is available via the Microsoft Security Response Center.

Information Disclosure Buffer Overflow Microsoft 365 Apps Excel +4
NVD
CVSS 3.1
5.5
EPSS
0.4%
CVE-2026-68797 MEDIUM PATCH Exploit Unlikely This Month

Out-of-bounds read in Microsoft Excel enables local information disclosure when a user opens a specially crafted spreadsheet. Multiple product lines are affected across Windows and macOS, spanning Excel 2016, Office 2019, LTSC 2021, LTSC 2024, Office 365 for Mac, and Microsoft 365 Apps for Enterprise. Microsoft has released patches; no public exploit code has been identified at time of analysis, and this vulnerability is not listed in the CISA KEV catalog.

Information Disclosure Buffer Overflow Microsoft 365 Apps Excel +5
NVD VulDB
CVSS 3.1
5.5
EPSS
0.5%
CVE-2026-68796 HIGH PATCH Exploit Unlikely This Week

Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a user opens a specially crafted Excel file. An unauthenticated attacker (per CVSS PR:N) delivers a malicious document that triggers the overflow upon interaction (UI:R), achieving full confidentiality, integrity, and availability compromise on the victim system. No public exploit or KEV listing has been identified at time of analysis, though the attack pattern is well-understood and document-based Excel exploits have a long operational history.

Microsoft Heap Overflow Buffer Overflow 365 Apps Excel +4
NVD VulDB
CVSS 3.1
7.8
EPSS
0.3%
CVE-2026-68795 HIGH PATCH Exploit Unlikely This Week

Stack-based buffer overflow in Microsoft Office Excel enables arbitrary code execution on the victim's local machine when a specially crafted Excel file is opened. The vulnerability carries a CVSS base score of 7.8 with high confidentiality, integrity, and availability impact, affecting the victim's user-level security context. No public exploit has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog, reducing immediacy compared to actively exploited file-format parsing flaws.

Stack Overflow Buffer Overflow Microsoft 365 Apps Excel +4
NVD
CVSS 3.1
7.8
EPSS
0.3%
CVE-2026-68794 HIGH PATCH NEWS Exploit Unlikely This Week

Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a victim opens a maliciously crafted file. The vulnerability (CWE-122) corrupts heap memory in Excel's parsing logic, allowing an attacker to achieve full control over confidentiality, integrity, and availability of the affected system. No public exploit or active exploitation has been identified at time of analysis, but the CVSS score of 7.8 with high impact across all three CIA triad pillars makes this a meaningful priority for organizations running affected Excel versions.

Microsoft Heap Overflow Buffer Overflow 365 Apps Excel +4
NVD VulDB
CVSS 3.1
7.8
EPSS
0.4%
CVE-2026-68793 HIGH PATCH Exploit Unlikely This Week

Out-of-bounds read in Microsoft Office Excel enables local code execution when a user opens a specially crafted workbook file. The CVSS vector (AV:L/AC:L/PR:N/UI:R) confirms file-based delivery requiring victim interaction, achieving full confidentiality, integrity, and availability impact on the compromised host. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog.

Information Disclosure Buffer Overflow Microsoft 365 Apps Excel +4
NVD VulDB
CVSS 3.1
7.8
EPSS
0.3%
CVE-2026-65807 HIGH PATCH Exploit Unlikely This Week

Type confusion in Microsoft Office Excel's file-processing engine enables remote code execution when a user opens a specially crafted spreadsheet document. The vulnerability carries a CVSS 8.8 High score with full confidentiality, integrity, and availability impact against the Excel process, requiring only user interaction to trigger - the classic phishing-attachment threat model. No public exploit code has been identified and the vulnerability is not listed in the CISA KEV catalog at time of analysis.

Memory Corruption Authentication Bypass Microsoft 365 Apps Excel +4
NVD VulDB
CVSS 3.1
8.8
EPSS
0.4%
CVE-2026-45649 HIGH This Week

Local spoofing in Microsoft Office for Android lets an unauthorized attacker manipulate trust-affecting content or identity indicators after a user interacts with malicious input on the device. The CVSS 7.1 score reflects high confidentiality and integrity impact with no special privileges required, though the local attack vector and required user interaction limit remote exploitability. No public exploit identified at time of analysis and the issue is not on the CISA KEV list.

Authentication Bypass Google Microsoft Excel Powerpoint +1
NVD VulDB
CVSS 3.1
7.1
EPSS
0.1%
CVE-2026-45469 HIGH PATCH Exploit Unlikely This Week

Local code execution in Microsoft Office Excel results from an integer underflow (CWE-122 heap-based) that allows an unauthorized attacker to run arbitrary code in the context of the user opening a crafted spreadsheet. The CVSS 7.8 score reflects local attack vector with required user interaction, and no public exploit identified at time of analysis. Microsoft (secure@microsoft.com) is the originating CNA, and the issue is tagged as a buffer/heap overflow class flaw.

Heap Overflow Microsoft Buffer Overflow 365 Apps Excel +5
NVD VulDB
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-45455 MEDIUM PATCH Exploit Unlikely This Month

Out-of-bounds read in Microsoft Excel exposes limited memory contents to a local attacker when a user opens a specially crafted workbook. Affected product lines span Excel 2016, Office 2019, Office LTSC 2021/2024, Microsoft 365 Apps for Enterprise, Office Online Server, and multiple Mac variants. With a CVSS score of 3.3 (Low), no public exploit identified at time of analysis, and no CISA KEV listing, this is a low-urgency information disclosure issue - though a notable conflict exists between the description's claim of network-based disclosure and the CVSS AV:L (local) vector that warrants verification against the vendor advisory.

Information Disclosure Microsoft Buffer Overflow 365 Apps Excel +5
NVD VulDB
CVSS 3.1
4.3
EPSS
0.1%
CVE-2026-44823 HIGH PATCH Exploit Unlikely This Week

Local code execution in Microsoft Office Excel stems from an integer underflow that, when triggered by opening a crafted spreadsheet, allows an attacker to run arbitrary code in the context of the current user. The CVSS 3.1 vector (AV:L/AC:L/PR:N/UI:R) confirms exploitation requires the victim to open a malicious file, and there is no public exploit identified at time of analysis. With a base score of 7.8 and full confidentiality, integrity, and availability impact, successful exploitation effectively gives the attacker the victim's privileges on the host.

Authentication Bypass Microsoft 365 Apps Excel Microsoft 365 +4
NVD VulDB
CVSS 3.1
7.8
EPSS
0.2%
CVE-2026-44822 HIGH PATCH This Week

Information disclosure in Microsoft Office Excel allows remote unauthenticated attackers to read out-of-bounds memory over a network, potentially exposing sensitive data from process memory. The CVSS 8.2 score reflects high confidentiality impact with no authentication or user interaction required per the CVSS vector. No public exploit identified at time of analysis and the vulnerability is not currently listed in CISA KEV.

Information Disclosure Microsoft Buffer Overflow 365 Apps Excel +5
NVD VulDB
CVSS 3.1
8.2
EPSS
0.1%
CVE-2026-44820 HIGH PATCH Exploit Unlikely This Week

Local code execution in Microsoft Office Excel stems from an integer underflow condition that can be triggered when a victim opens a malicious spreadsheet, leading to out-of-bounds memory access (CWE-125). The flaw requires user interaction but no prior authentication on the target, and no public exploit identified at time of analysis. With a CVSS of 7.8 (high) and the typical phishing-friendly delivery model of Office files, this fits the profile of a document-based client-side RCE primitive.

Information Disclosure Microsoft Buffer Overflow 365 Apps Excel +5
NVD VulDB
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-44818 HIGH PATCH Exploit Unlikely This Week

Local code execution in Microsoft Office Excel can be achieved by an unauthenticated attacker who tricks a user into opening a malicious spreadsheet that triggers an integer underflow condition. The flaw carries a CVSS 7.0 rating reflecting high attack complexity and required user interaction, and no public exploit identified at time of analysis. There is a notable mismatch between the description (integer underflow) and the assigned CWE-362 (race condition), which warrants verification with Microsoft's advisory.

Authentication Bypass Microsoft Race Condition 365 Apps Excel +5
NVD VulDB
CVSS 3.1
7.0
EPSS
0.0%
CVE-2026-44817 HIGH PATCH This Week

Local code execution in Microsoft Office Excel arises from an integer underflow condition that corrupts memory when a malicious spreadsheet is opened. The flaw requires user interaction (UI:R) to trigger but needs no prior authentication, enabling attackers to run arbitrary code in the security context of the victim user. At the time of analysis, no public exploit identified at time of analysis and the issue is not listed in CISA KEV.

Microsoft Authentication Bypass Memory Corruption 365 Apps Excel +5
NVD VulDB
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-44812 HIGH PATCH NEWS Exploit Likely Act Now

Local code execution in Microsoft Windows Win32K GRFX (graphics) subsystem allows an attacker with low-privilege local access to run arbitrary code by triggering an integer overflow, after coaxing a user into interacting with a crafted graphics object. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV, though Win32K bugs historically attract rapid exploit development for privilege escalation in post-compromise chains.

Microsoft Integer Overflow Buffer Overflow Excel Powerpoint +14
NVD VulDB
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-44803 HIGH PATCH NEWS Exploit Likely Act Now

Local code execution in the Windows Win32K GRFX (graphics) subsystem allows an unauthorized attacker with the ability to run code locally to escalate privileges through an integer overflow. The flaw was reported by Microsoft (MSRC) and carries a CVSS 7.8, but requires user interaction (UI:R) and local access (AV:L), and no public exploit identified at time of analysis.

Microsoft Integer Overflow Buffer Overflow Excel Powerpoint +14
NVD VulDB
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-26112 HIGH PATCH This Week

Microsoft Excel and Office products are vulnerable to local code execution through unsafe pointer dereferencing, requiring user interaction to trigger. An attacker with local access can exploit this flaw to achieve arbitrary code execution with full system privileges. No patch is currently available, leaving users of affected Office versions at risk.

Microsoft Authentication Bypass Office Online Server Excel Office +2
NVD VulDB
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-26109 HIGH PATCH This Week

Arbitrary code execution in Microsoft Office Excel and related products (Office Online Server, 365 Apps) via out-of-bounds memory read allows local attackers to achieve complete system compromise without requiring user interaction or elevated privileges. This high-severity vulnerability affects multiple Microsoft Office components and currently lacks a security patch. An attacker with local access can exploit memory corruption to execute malicious code with full system permissions.

Microsoft Information Disclosure Buffer Overflow Office Online Server 365 Apps +3
NVD VulDB
CVSS 3.1
8.4
EPSS
0.0%
CVE-2026-26108 HIGH PATCH This Week

Heap buffer overflow in Microsoft Office Excel enables local code execution with high integrity and confidentiality impact affecting Office, Office Online Server, and 365 Apps. An attacker with user interaction can achieve arbitrary code execution in the context of the affected application. No patch is currently available for this vulnerability.

Microsoft Buffer Overflow Heap Overflow Office Office Online Server +3
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-26107 HIGH PATCH This Week

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. [CVSS 7.8 HIGH]

Microsoft Use After Free Denial Of Service Memory Corruption Office Long Term Servicing Channel +4
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-21261 MEDIUM PATCH This Month

Information disclosure in Microsoft Office Excel and related products results from an out-of-bounds read vulnerability that requires local access and user interaction to exploit. An attacker can leverage this flaw to read sensitive data from memory on an affected system. No patch is currently available for this vulnerability affecting Office Long Term Servicing Channel, 365 Apps, and Office Online Server.

Microsoft Office Long Term Servicing Channel 365 Apps Office Online Server Office +1
NVD
CVSS 3.1
5.5
EPSS
0.0%
CVE-2026-21259 HIGH PATCH This Week

Privilege escalation in Microsoft Office Excel (including 365 Apps and Long Term Servicing Channel) via heap-based buffer overflow allows local attackers with user interaction to gain elevated system privileges. The vulnerability affects multiple Office product lines and currently lacks a security patch. With a CVSS score of 7.8, this poses a significant risk to organizations using affected Excel versions.

Microsoft Buffer Overflow Heap Overflow Office Long Term Servicing Channel 365 Apps +3
NVD
CVSS 3.1
7.8
EPSS
0.0%
CVE-2026-21258 MEDIUM PATCH This Month

Information disclosure in Microsoft Excel allows local attackers with user interaction to read sensitive data through improper input validation in Office 365 Apps and Long Term Servicing Channel. An attacker must socially engineer a user into opening a specially crafted file to trigger the vulnerability. No patch is currently available for this medium-severity issue.

Microsoft Office 365 Apps Office Long Term Servicing Channel Excel +1
NVD
CVSS 3.1
5.5
EPSS
0.0%
CVE-2026-20957 HIGH PATCH This Week

Arbitrary code execution in Microsoft Office Excel results from an integer underflow vulnerability in the Long Term Servicing Channel and Online Server editions, exploitable by local attackers with user interaction. This HIGH severity flaw (CVSS 7.8) grants full system compromise capabilities including code execution, data theft, and service disruption with no available patch.

Microsoft Integer Overflow Office Long Term Servicing Channel Office Online Server Excel +2
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-20950 HIGH PATCH This Week

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. [CVSS 7.8 HIGH]

Microsoft Use After Free Excel Office Online Server 365 Apps +2
NVD
CVSS 3.1
7.8
EPSS
0.0%
CVE-2026-20946 HIGH PATCH This Week

Local code execution in Microsoft Office Excel occurs through an out-of-bounds memory read vulnerability affecting the Long Term Servicing Channel, Office 365 Apps, and standalone Office installations. An attacker with local access and user interaction can exploit this flaw to achieve arbitrary code execution with full system privileges. No patch is currently available for this high-severity vulnerability.

Microsoft Office Long Term Servicing Channel 365 Apps Office Excel
NVD
CVSS 3.1
7.8
EPSS
0.0%
CVE-2025-62203 HIGH This Month

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Memory Corruption Denial Of Service Microsoft Use After Free 365 Apps +4
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-62202 HIGH This Month

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. Rated high severity (CVSS 7.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Microsoft Information Disclosure 365 Apps Excel +3
NVD
CVSS 3.1
7.1
EPSS
0.1%
CVE-2025-62201 HIGH This Month

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Microsoft Heap Overflow 365 Apps Excel +3
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-62200 HIGH This Month

Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft Authentication Bypass 365 Apps Excel Office +2
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-62199 HIGH This Month

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Memory Corruption Denial Of Service Microsoft Use After Free 365 Apps +3
NVD
CVSS 3.1
7.8
EPSS
0.9%
CVE-2025-60727 HIGH This Month

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Microsoft Information Disclosure 365 Apps Excel +3
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-60726 HIGH This Month

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. Rated high severity (CVSS 7.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Microsoft Information Disclosure 365 Apps Excel +3
NVD
CVSS 3.1
7.1
EPSS
0.1%
CVE-2025-59240 MEDIUM This Month

Exposure of sensitive information to an unauthorized actor in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Microsoft 365 Apps Excel Office +1
NVD
CVSS 3.1
5.5
EPSS
0.1%
CVE-2025-54904 HIGH This Month

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Memory Corruption Denial Of Service Use After Free Microsoft 365 Apps +4
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-54903 HIGH This Month

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Memory Corruption Denial Of Service Use After Free Microsoft 365 Apps +4
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-54902 HIGH This Month

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Microsoft Information Disclosure 365 Apps Excel +3
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-54901 MEDIUM This Month

Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Microsoft 365 Apps Excel Office +1
NVD
CVSS 3.1
5.5
EPSS
0.1%
CVE-2025-54900 HIGH This Month

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Heap Overflow Buffer Overflow Microsoft 365 Apps Excel +3
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-54899 HIGH This Month

Free of memory not on the heap in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Microsoft 365 Apps Excel Office +1
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-54898 HIGH This Month

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Microsoft Information Disclosure 365 Apps Excel +3
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-54896 HIGH This Month

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Memory Corruption Denial Of Service Use After Free Microsoft 365 Apps +4
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-53741 HIGH This Month

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Heap Overflow Buffer Overflow Microsoft 365 Apps Excel +3
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-53739 HIGH This Month

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Memory Corruption Authentication Bypass Microsoft 365 Apps Excel +3
NVD
CVSS 3.1
7.8
EPSS
0.2%
CVE-2025-53737 HIGH This Month

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Heap Overflow Buffer Overflow Microsoft 365 Apps Excel +3
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-53735 HIGH This Month

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Memory Corruption Denial Of Service Use After Free Microsoft 365 Apps +4
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-49711 HIGH PATCH This Week

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Microsoft Use After Free Memory Corruption Denial Of Service Office +4
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2025-48812 MEDIUM PATCH This Month

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

Microsoft Information Disclosure Buffer Overflow Excel 365 Apps +3
NVD
CVSS 3.1
5.5
EPSS
0.1%
CVE-2025-47165 HIGH POC PATCH This Week

Use-after-free vulnerability in Microsoft Office Excel that allows local code execution with high severity (CVSS 7.8). An attacker with local access can trigger the vulnerability through user interaction (opening a malicious file) to execute arbitrary code with the privileges of the Excel process, potentially achieving full system compromise. No KEV status, active exploitation data, or public POC availability was confirmed in the provided dataset, but the high CVSS score and local attack vector indicate this requires prompt patching.

Use After Free Microsoft Windows RCE Excel +4
NVD Exploit-DB
CVSS 3.1
7.8
EPSS
0.5%
CVE-2025-32704 HIGH This Week

Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 8.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft Buffer Overflow 365 Apps Excel Office +1
NVD
CVSS 3.1
8.4
EPSS
0.7%
CVE-2025-30383 HIGH This Week

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft Memory Corruption Authentication Bypass 365 Apps Excel +3
NVD
CVSS 3.1
7.8
EPSS
0.9%
CVE-2025-30381 HIGH This Week

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Microsoft Buffer Overflow 365 Apps Excel +3
NVD
CVSS 3.1
7.8
EPSS
0.8%
CVE-2025-30379 HIGH This Week

Release of invalid pointer or reference in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft Authentication Bypass 365 Apps Excel Office +2
NVD
CVSS 3.1
7.8
EPSS
0.8%
CVE-2025-30377 HIGH This Week

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 8.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Use After Free Memory Corruption Microsoft Denial Of Service 365 Apps +4
NVD
CVSS 3.1
8.4
EPSS
0.7%
CVE-2025-30376 HIGH This Week

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft Buffer Overflow Heap Overflow 365 Apps Excel +3
NVD
CVSS 3.1
7.8
EPSS
0.8%
CVE-2025-30375 HIGH This Week

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft Memory Corruption Authentication Bypass 365 Apps Excel +3
NVD
CVSS 3.1
7.8
EPSS
0.9%
CVE-2025-29979 HIGH This Month

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft Buffer Overflow Heap Overflow 365 Apps Excel +3
NVD
CVSS 3.1
7.8
EPSS
0.8%
CVE-2025-29977 HIGH This Month

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Use After Free Memory Corruption Microsoft Denial Of Service 365 Apps +4
NVD
CVSS 3.1
7.8
EPSS
0.8%
CVE-2025-27751 HIGH POC This Week

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Use After Free Memory Corruption Microsoft Denial Of Service 365 Apps +4
NVD Exploit-DB
CVSS 3.1
7.8
EPSS
1.2%
CVE-2025-27750 HIGH This Week

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Use After Free Memory Corruption Microsoft Denial Of Service 365 Apps +3
NVD
CVSS 3.1
7.8
EPSS
0.9%
CVE-2025-26642 HIGH This Week

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Microsoft Buffer Overflow 365 Apps Access +5
NVD
CVSS 3.1
7.8
EPSS
0.9%
CVE-2025-21394 HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Memory Corruption Microsoft RCE 365 Apps +4
NVD
CVSS 3.1
7.8
EPSS
0.3%
CVE-2025-21390 HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

Microsoft Buffer Overflow Heap Overflow RCE 365 Apps +4
NVD
CVSS 3.1
7.8
EPSS
0.3%
CVE-2025-21387 HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Memory Corruption Microsoft RCE 365 Apps +4
NVD
CVSS 3.1
7.8
EPSS
0.4%
CVE-2025-21386 HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Memory Corruption Microsoft RCE 365 Apps +4
NVD
CVSS 3.1
7.8
EPSS
0.3%
CVE-2025-21383 HIGH PATCH This Week

Microsoft Excel Information Disclosure Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.

Information Disclosure Microsoft Buffer Overflow 365 Apps Excel +2
NVD
CVSS 3.1
7.8
EPSS
0.3%
CVE-2025-21381 HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

Microsoft RCE 365 Apps Excel Office +2
NVD
CVSS 3.1
7.8
EPSS
0.4%
CVE-2025-21362 HIGH PATCH CERT-EU This Month

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 8.4), this vulnerability is no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Microsoft Memory Corruption Use After Free RCE 365 Apps +4
NVD
CVSS 3.1
8.4
EPSS
0.6%
CVE-2024-43106 CRITICAL POC Act Now

A library injection vulnerability exists in Microsoft Excel 16.83 for macOS. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Authentication Bypass Apple Jwt Attack Microsoft Excel
NVD
CVSS 3.1
9.1
EPSS
0.7%
CVE-2024-49069 HIGH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Use After Free Microsoft RCE Memory Corruption 365 Apps +3
NVD
CVSS 3.1
7.8
EPSS
1.1%
CVE-2024-49030 HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

Heap Overflow Buffer Overflow RCE Microsoft 365 Apps +3
NVD
CVSS 3.1
7.8
EPSS
0.7%
CVE-2024-49029 HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Use of Uninitialized Resource vulnerability could allow attackers to access uninitialized memory causing crashes or information disclosure.

RCE Microsoft 365 Apps Excel Office +1
NVD
CVSS 3.1
7.8
EPSS
0.7%
CVE-2024-49028 HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.

Buffer Overflow Information Disclosure RCE Microsoft 365 Apps +3
NVD
CVSS 3.1
7.8
EPSS
0.7%
CVE-2024-49027 HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Microsoft RCE Memory Corruption 365 Apps +3
NVD
CVSS 3.1
7.8
EPSS
0.7%
EPSS 1% CVSS 6.5
MEDIUM PATCH Exploit Unlikely This Month

Out-of-bounds read in Microsoft Office Excel enables remote information disclosure when a user opens a specially crafted spreadsheet. The CVSS vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N) confirms that an unauthenticated network-based attacker can trigger the flaw, but only after social engineering a victim into opening a malicious file. No public exploit code and no CISA KEV listing have been identified at time of analysis; Microsoft has released patches across all affected Office product lines.

Information Disclosure Buffer Overflow Microsoft +6
NVD
EPSS 1% CVSS 6.5
MEDIUM PATCH Exploit Unlikely This Month

Out-of-bounds read in Microsoft Excel exposes sensitive memory contents over a network to unauthenticated remote attackers, resulting in high-confidence information disclosure (C:H). Exploitation requires user interaction - specifically, opening a crafted Excel document - placing this firmly in the phishing/malicious-attachment delivery class. No active exploitation has been confirmed (not listed in CISA KEV), and no public exploit code has been identified at the time of analysis, though the patch is available and should be applied promptly given the ubiquity of the affected product across enterprise environments.

Information Disclosure Buffer Overflow Microsoft +6
NVD
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

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 Overflow Buffer Overflow Microsoft +6
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

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.

Stack Overflow Buffer Overflow Microsoft +6
NVD
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

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.

Microsoft Heap Overflow Buffer Overflow +6
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

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.

Information Disclosure Buffer Overflow Microsoft +6
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

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.

Microsoft Heap Overflow Buffer Overflow +6
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

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.

Memory Corruption Authentication Bypass Microsoft +6
NVD
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

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.

Authentication Bypass Microsoft 365 Apps +5
NVD
EPSS 0% CVSS 5.5
MEDIUM PATCH Exploit Unlikely This Month

Out-of-bounds read in Microsoft Excel exposes process memory to local information disclosure across a wide range of Office versions, from Excel 2016 through Microsoft 365 Apps for Enterprise and multiple LTSC releases on both Windows and macOS. The CVSS 3.1 vector (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N) confirms exploitation requires the victim to open a specially crafted spreadsheet file, making phishing-delivered documents the realistic delivery mechanism. 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.

Information Disclosure Buffer Overflow Microsoft +6
NVD
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

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.

Microsoft Heap Overflow Buffer Overflow +6
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

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.

Memory Corruption Buffer Overflow Microsoft +6
NVD
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

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.

Microsoft Heap Overflow Buffer Overflow +6
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

Heap-based buffer overflow in Microsoft Office Excel enables local code execution with full system impact when a victim opens a maliciously crafted workbook. The root cause is a numeric truncation error (CWE-122) in Excel's file parsing logic, where an integer value is truncated before being used to size a heap allocation, resulting in an undersized buffer that can be overflowed. No public exploit code has been identified at time of analysis, and there is no CISA KEV listing, but the high CVSS score of 7.8 and full confidentiality, integrity, and availability impact make this a meaningful risk for organizations relying on Excel file workflows.

Microsoft Heap Overflow Buffer Overflow +6
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

Type confusion (CWE-843) in Microsoft Office Excel enables local code execution by an unauthenticated attacker when a victim opens a specially crafted Excel document. The CVSS:3.1 vector (AV:L/AC:L/PR:N/UI:R) confirms this is a file-borne attack requiring user interaction but no attacker privileges, with full High/High/High C/I/A impact. No public exploit code or CISA KEV listing has been identified at time of analysis, though the memory corruption tag suggests the type confusion leads to exploitable heap or stack corruption.

Memory Corruption Authentication Bypass Microsoft +6
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH Exploit Unlikely This Month

Out-of-bounds read (CWE-125) in Microsoft Excel triggers information disclosure when a victim opens a specially crafted spreadsheet file, exposing potentially sensitive memory contents to a local attacker. The flaw spans multiple Office product lines - Excel 2016, Office 2019, Office LTSC 2021/2024, Microsoft 365 Apps for Enterprise, and corresponding Mac variants - with high confidentiality impact but no integrity or availability consequences. No public exploit has been identified and SSVC confirms no known exploitation; a vendor patch is available via the Microsoft Security Response Center.

Information Disclosure Buffer Overflow Microsoft +6
NVD
EPSS 0% CVSS 5.5
MEDIUM PATCH Exploit Unlikely This Month

Out-of-bounds read in Microsoft Excel enables local information disclosure when a user opens a specially crafted spreadsheet. Multiple product lines are affected across Windows and macOS, spanning Excel 2016, Office 2019, LTSC 2021, LTSC 2024, Office 365 for Mac, and Microsoft 365 Apps for Enterprise. Microsoft has released patches; no public exploit code has been identified at time of analysis, and this vulnerability is not listed in the CISA KEV catalog.

Information Disclosure Buffer Overflow Microsoft +7
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a user opens a specially crafted Excel file. An unauthenticated attacker (per CVSS PR:N) delivers a malicious document that triggers the overflow upon interaction (UI:R), achieving full confidentiality, integrity, and availability compromise on the victim system. No public exploit or KEV listing has been identified at time of analysis, though the attack pattern is well-understood and document-based Excel exploits have a long operational history.

Microsoft Heap Overflow Buffer Overflow +6
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

Stack-based buffer overflow in Microsoft Office Excel enables arbitrary code execution on the victim's local machine when a specially crafted Excel file is opened. The vulnerability carries a CVSS base score of 7.8 with high confidentiality, integrity, and availability impact, affecting the victim's user-level security context. No public exploit has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog, reducing immediacy compared to actively exploited file-format parsing flaws.

Stack Overflow Buffer Overflow Microsoft +6
NVD
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

Heap-based buffer overflow in Microsoft Office Excel enables local code execution when a victim opens a maliciously crafted file. The vulnerability (CWE-122) corrupts heap memory in Excel's parsing logic, allowing an attacker to achieve full control over confidentiality, integrity, and availability of the affected system. No public exploit or active exploitation has been identified at time of analysis, but the CVSS score of 7.8 with high impact across all three CIA triad pillars makes this a meaningful priority for organizations running affected Excel versions.

Microsoft Heap Overflow Buffer Overflow +6
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

Out-of-bounds read in Microsoft Office Excel enables local code execution when a user opens a specially crafted workbook file. The CVSS vector (AV:L/AC:L/PR:N/UI:R) confirms file-based delivery requiring victim interaction, achieving full confidentiality, integrity, and availability impact on the compromised host. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog.

Information Disclosure Buffer Overflow Microsoft +6
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH Exploit Unlikely This Week

Type confusion in Microsoft Office Excel's file-processing engine enables remote code execution when a user opens a specially crafted spreadsheet document. The vulnerability carries a CVSS 8.8 High score with full confidentiality, integrity, and availability impact against the Excel process, requiring only user interaction to trigger - the classic phishing-attachment threat model. No public exploit code has been identified and the vulnerability is not listed in the CISA KEV catalog at time of analysis.

Memory Corruption Authentication Bypass Microsoft +6
NVD VulDB
EPSS 0% CVSS 7.1
HIGH This Week

Local spoofing in Microsoft Office for Android lets an unauthorized attacker manipulate trust-affecting content or identity indicators after a user interacts with malicious input on the device. The CVSS 7.1 score reflects high confidentiality and integrity impact with no special privileges required, though the local attack vector and required user interaction limit remote exploitability. No public exploit identified at time of analysis and the issue is not on the CISA KEV list.

Authentication Bypass Google Microsoft +3
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

Local code execution in Microsoft Office Excel results from an integer underflow (CWE-122 heap-based) that allows an unauthorized attacker to run arbitrary code in the context of the user opening a crafted spreadsheet. The CVSS 7.8 score reflects local attack vector with required user interaction, and no public exploit identified at time of analysis. Microsoft (secure@microsoft.com) is the originating CNA, and the issue is tagged as a buffer/heap overflow class flaw.

Heap Overflow Microsoft Buffer Overflow +7
NVD VulDB
EPSS 0% CVSS 4.3
MEDIUM PATCH Exploit Unlikely This Month

Out-of-bounds read in Microsoft Excel exposes limited memory contents to a local attacker when a user opens a specially crafted workbook. Affected product lines span Excel 2016, Office 2019, Office LTSC 2021/2024, Microsoft 365 Apps for Enterprise, Office Online Server, and multiple Mac variants. With a CVSS score of 3.3 (Low), no public exploit identified at time of analysis, and no CISA KEV listing, this is a low-urgency information disclosure issue - though a notable conflict exists between the description's claim of network-based disclosure and the CVSS AV:L (local) vector that warrants verification against the vendor advisory.

Information Disclosure Microsoft Buffer Overflow +7
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

Local code execution in Microsoft Office Excel stems from an integer underflow that, when triggered by opening a crafted spreadsheet, allows an attacker to run arbitrary code in the context of the current user. The CVSS 3.1 vector (AV:L/AC:L/PR:N/UI:R) confirms exploitation requires the victim to open a malicious file, and there is no public exploit identified at time of analysis. With a base score of 7.8 and full confidentiality, integrity, and availability impact, successful exploitation effectively gives the attacker the victim's privileges on the host.

Authentication Bypass Microsoft 365 Apps +6
NVD VulDB
EPSS 0% CVSS 8.2
HIGH PATCH This Week

Information disclosure in Microsoft Office Excel allows remote unauthenticated attackers to read out-of-bounds memory over a network, potentially exposing sensitive data from process memory. The CVSS 8.2 score reflects high confidentiality impact with no authentication or user interaction required per the CVSS vector. No public exploit identified at time of analysis and the vulnerability is not currently listed in CISA KEV.

Information Disclosure Microsoft Buffer Overflow +7
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Unlikely This Week

Local code execution in Microsoft Office Excel stems from an integer underflow condition that can be triggered when a victim opens a malicious spreadsheet, leading to out-of-bounds memory access (CWE-125). The flaw requires user interaction but no prior authentication on the target, and no public exploit identified at time of analysis. With a CVSS of 7.8 (high) and the typical phishing-friendly delivery model of Office files, this fits the profile of a document-based client-side RCE primitive.

Information Disclosure Microsoft Buffer Overflow +7
NVD VulDB
EPSS 0% CVSS 7.0
HIGH PATCH Exploit Unlikely This Week

Local code execution in Microsoft Office Excel can be achieved by an unauthenticated attacker who tricks a user into opening a malicious spreadsheet that triggers an integer underflow condition. The flaw carries a CVSS 7.0 rating reflecting high attack complexity and required user interaction, and no public exploit identified at time of analysis. There is a notable mismatch between the description (integer underflow) and the assigned CWE-362 (race condition), which warrants verification with Microsoft's advisory.

Authentication Bypass Microsoft Race Condition +7
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Local code execution in Microsoft Office Excel arises from an integer underflow condition that corrupts memory when a malicious spreadsheet is opened. The flaw requires user interaction (UI:R) to trigger but needs no prior authentication, enabling attackers to run arbitrary code in the security context of the victim user. At the time of analysis, no public exploit identified at time of analysis and the issue is not listed in CISA KEV.

Microsoft Authentication Bypass Memory Corruption +7
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Likely Act Now

Local code execution in Microsoft Windows Win32K GRFX (graphics) subsystem allows an attacker with low-privilege local access to run arbitrary code by triggering an integer overflow, after coaxing a user into interacting with a crafted graphics object. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV, though Win32K bugs historically attract rapid exploit development for privilege escalation in post-compromise chains.

Microsoft Integer Overflow Buffer Overflow +16
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH Exploit Likely Act Now

Local code execution in the Windows Win32K GRFX (graphics) subsystem allows an unauthorized attacker with the ability to run code locally to escalate privileges through an integer overflow. The flaw was reported by Microsoft (MSRC) and carries a CVSS 7.8, but requires user interaction (UI:R) and local access (AV:L), and no public exploit identified at time of analysis.

Microsoft Integer Overflow Buffer Overflow +16
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Microsoft Excel and Office products are vulnerable to local code execution through unsafe pointer dereferencing, requiring user interaction to trigger. An attacker with local access can exploit this flaw to achieve arbitrary code execution with full system privileges. No patch is currently available, leaving users of affected Office versions at risk.

Microsoft Authentication Bypass Office Online Server +4
NVD VulDB
EPSS 0% CVSS 8.4
HIGH PATCH This Week

Arbitrary code execution in Microsoft Office Excel and related products (Office Online Server, 365 Apps) via out-of-bounds memory read allows local attackers to achieve complete system compromise without requiring user interaction or elevated privileges. This high-severity vulnerability affects multiple Microsoft Office components and currently lacks a security patch. An attacker with local access can exploit memory corruption to execute malicious code with full system permissions.

Microsoft Information Disclosure Buffer Overflow +5
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Heap buffer overflow in Microsoft Office Excel enables local code execution with high integrity and confidentiality impact affecting Office, Office Online Server, and 365 Apps. An attacker with user interaction can achieve arbitrary code execution in the context of the affected application. No patch is currently available for this vulnerability.

Microsoft Buffer Overflow Heap Overflow +5
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. [CVSS 7.8 HIGH]

Microsoft Use After Free Denial Of Service +6
NVD
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

Information disclosure in Microsoft Office Excel and related products results from an out-of-bounds read vulnerability that requires local access and user interaction to exploit. An attacker can leverage this flaw to read sensitive data from memory on an affected system. No patch is currently available for this vulnerability affecting Office Long Term Servicing Channel, 365 Apps, and Office Online Server.

Microsoft Office Long Term Servicing Channel 365 Apps +3
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Privilege escalation in Microsoft Office Excel (including 365 Apps and Long Term Servicing Channel) via heap-based buffer overflow allows local attackers with user interaction to gain elevated system privileges. The vulnerability affects multiple Office product lines and currently lacks a security patch. With a CVSS score of 7.8, this poses a significant risk to organizations using affected Excel versions.

Microsoft Buffer Overflow Heap Overflow +5
NVD
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

Information disclosure in Microsoft Excel allows local attackers with user interaction to read sensitive data through improper input validation in Office 365 Apps and Long Term Servicing Channel. An attacker must socially engineer a user into opening a specially crafted file to trigger the vulnerability. No patch is currently available for this medium-severity issue.

Microsoft Office 365 Apps +3
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Arbitrary code execution in Microsoft Office Excel results from an integer underflow vulnerability in the Long Term Servicing Channel and Online Server editions, exploitable by local attackers with user interaction. This HIGH severity flaw (CVSS 7.8) grants full system compromise capabilities including code execution, data theft, and service disruption with no available patch.

Microsoft Integer Overflow Office Long Term Servicing Channel +4
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. [CVSS 7.8 HIGH]

Microsoft Use After Free Excel +4
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Local code execution in Microsoft Office Excel occurs through an out-of-bounds memory read vulnerability affecting the Long Term Servicing Channel, Office 365 Apps, and standalone Office installations. An attacker with local access and user interaction can exploit this flaw to achieve arbitrary code execution with full system privileges. No patch is currently available for this high-severity vulnerability.

Microsoft Office Long Term Servicing Channel 365 Apps +2
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Memory Corruption Denial Of Service Microsoft +6
NVD
EPSS 0% CVSS 7.1
HIGH This Month

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. Rated high severity (CVSS 7.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Microsoft Information Disclosure +5
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Microsoft Heap Overflow +5
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft Authentication Bypass 365 Apps +4
NVD
EPSS 1% CVSS 7.8
HIGH This Month

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Memory Corruption Denial Of Service Microsoft +5
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Microsoft Information Disclosure +5
NVD
EPSS 0% CVSS 7.1
HIGH This Month

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. Rated high severity (CVSS 7.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Microsoft Information Disclosure +5
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

Exposure of sensitive information to an unauthorized actor in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Microsoft 365 Apps +3
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Memory Corruption Denial Of Service Use After Free +6
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Memory Corruption Denial Of Service Use After Free +6
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Microsoft Information Disclosure +5
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Microsoft 365 Apps +3
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Heap Overflow Buffer Overflow Microsoft +5
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Free of memory not on the heap in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Microsoft 365 Apps +3
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Microsoft Information Disclosure +5
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Memory Corruption Denial Of Service Use After Free +6
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Heap Overflow Buffer Overflow Microsoft +5
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Memory Corruption Authentication Bypass Microsoft +5
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Heap Overflow Buffer Overflow Microsoft +5
NVD
EPSS 0% CVSS 7.8
HIGH This Month

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Memory Corruption Denial Of Service Use After Free +6
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Microsoft Use After Free Memory Corruption +6
NVD
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

Microsoft Information Disclosure Buffer Overflow +5
NVD
EPSS 0% CVSS 7.8
HIGH POC PATCH This Week

Use-after-free vulnerability in Microsoft Office Excel that allows local code execution with high severity (CVSS 7.8). An attacker with local access can trigger the vulnerability through user interaction (opening a malicious file) to execute arbitrary code with the privileges of the Excel process, potentially achieving full system compromise. No KEV status, active exploitation data, or public POC availability was confirmed in the provided dataset, but the high CVSS score and local attack vector indicate this requires prompt patching.

Use After Free Microsoft Windows +6
NVD Exploit-DB
EPSS 1% CVSS 8.4
HIGH This Week

Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 8.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft Buffer Overflow 365 Apps +3
NVD
EPSS 1% CVSS 7.8
HIGH This Week

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft Memory Corruption Authentication Bypass +5
NVD
EPSS 1% CVSS 7.8
HIGH This Week

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Microsoft Buffer Overflow +5
NVD
EPSS 1% CVSS 7.8
HIGH This Week

Release of invalid pointer or reference in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft Authentication Bypass 365 Apps +4
NVD
EPSS 1% CVSS 8.4
HIGH This Week

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 8.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Use After Free Memory Corruption Microsoft +6
NVD
EPSS 1% CVSS 7.8
HIGH This Week

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft Buffer Overflow Heap Overflow +5
NVD
EPSS 1% CVSS 7.8
HIGH This Week

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft Memory Corruption Authentication Bypass +5
NVD
EPSS 1% CVSS 7.8
HIGH This Month

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft Buffer Overflow Heap Overflow +5
NVD
EPSS 1% CVSS 7.8
HIGH This Month

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Use After Free Memory Corruption Microsoft +6
NVD
EPSS 1% CVSS 7.8
HIGH POC This Week

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Use After Free Memory Corruption Microsoft +6
NVD Exploit-DB
EPSS 1% CVSS 7.8
HIGH This Week

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Use After Free Memory Corruption Microsoft +5
NVD
EPSS 1% CVSS 7.8
HIGH This Week

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Microsoft Buffer Overflow +7
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Memory Corruption Microsoft +6
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

Microsoft Buffer Overflow Heap Overflow +6
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Memory Corruption Microsoft +6
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Memory Corruption Microsoft +6
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Microsoft Excel Information Disclosure Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.

Information Disclosure Microsoft Buffer Overflow +4
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

Microsoft RCE 365 Apps +4
NVD
EPSS 1% CVSS 8.4
HIGH PATCH This Month

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 8.4), this vulnerability is no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Microsoft Memory Corruption Use After Free +6
NVD
EPSS 1% CVSS 9.1
CRITICAL POC Act Now

A library injection vulnerability exists in Microsoft Excel 16.83 for macOS. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Authentication Bypass Apple Jwt Attack +2
NVD
EPSS 1% CVSS 7.8
HIGH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Use After Free Microsoft RCE +5
NVD
EPSS 1% CVSS 7.8
HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

Heap Overflow Buffer Overflow RCE +5
NVD
EPSS 1% CVSS 7.8
HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Use of Uninitialized Resource vulnerability could allow attackers to access uninitialized memory causing crashes or information disclosure.

RCE Microsoft 365 Apps +3
NVD
EPSS 1% CVSS 7.8
HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.

Buffer Overflow Information Disclosure RCE +5
NVD
EPSS 1% CVSS 7.8
HIGH PATCH This Week

Microsoft Excel Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Microsoft RCE +5
NVD
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