Windows 10 21h2
Monthly
Heap-based buffer overflow in Windows Imaging Component (WIC) enables remote code execution across a wide range of Microsoft Windows desktop and server editions. Exploitation requires a user to open or preview a maliciously crafted image file - consistent with the UI:R CVSS metric - which triggers CWE-122 heap corruption that can be leveraged for arbitrary code execution with full confidentiality, integrity, and availability impact. The vulnerability spans Windows Server 2012 through Server 2025 and Windows 10/11 across all current servicing branches; Microsoft has issued patches for all affected release lines, and no public exploit or CISA KEV entry has been identified at time of analysis.
Out-of-bounds read in the Windows Services for NFS ONCRPC XDR Driver enables unauthenticated remote attackers to crash the affected Windows system, causing a denial-of-service condition. The flaw resides in the kernel-mode driver that processes ONC RPC (Open Network Computing Remote Procedure Call) External Data Representation (XDR) packets, meaning a specially crafted network request can trigger a memory read beyond intended buffer boundaries - most likely a kernel panic (Blue Screen of Death). The affected surface spans Windows 10, Windows 11, and Windows Server versions from 2012 through 2025; a vendor patch is available via Microsoft's update guide. No public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in the Windows Biometric Service (WBioSrvc) enables a locally authenticated low-privileged attacker to escalate to SYSTEM-level privileges with no user interaction required. The vulnerability spans Windows 10 (versions 1607 through 22H2), Windows 11 (versions 23H2 through 26H1), and Windows Server 2016 through 2025, making it one of the broadest-scope local privilege escalation issues in the current patch cycle. Microsoft has released patches across all affected branches; no public exploit code or CISA KEV active exploitation entry has been identified at time of analysis.
Heap-based buffer overflow in Windows Biometric Service (WbioSrvc) enables a local attacker with low-privilege code execution to escalate to SYSTEM-level privileges across a broad range of Windows 10, Windows 11, and Windows Server releases. Exploitation requires no user interaction and no elevated starting privileges beyond a standard user session. No public exploit code or CISA KEV listing has been identified at time of analysis; Microsoft has released patches for all affected versions via the update guide at msrc.microsoft.com.
Local privilege escalation via heap-based buffer overflow (CWE-122) in the Windows Biometric Service (WBioSrvc) affects Windows 10, Windows 11, and Windows Server 2016 through 2025 across a broad range of build versions. An authorized local attacker with low privileges can trigger the overflow to corrupt heap memory and achieve SYSTEM-level access, yielding full confidentiality, integrity, and availability impact on the local machine. Microsoft has released patches through the standard Patch Tuesday cycle; no active exploitation or public proof-of-concept has been identified at time of analysis.
Heap-based buffer overflow in Windows Biometric Service (WinBio) enables a locally authenticated attacker with standard user privileges to escalate to SYSTEM-level access across a broad swath of Windows 10, Windows 11, and Windows Server editions. The vulnerability is rooted in CWE-122 (heap buffer overflow) within the service that manages biometric devices such as fingerprint readers and Windows Hello. Microsoft has released patches via the MSRC update guide; no public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in the Windows Biometric Service (wbiosrvc) enables any authenticated local user to elevate privileges to SYSTEM across a broad range of Windows 10, Windows 11, and Windows Server releases. The CVSS 7.8 vector (AV:L/AC:L/PR:L/UI:N) reflects straightforward exploitation conditions - no complex setup or user interaction required - with full confidentiality, integrity, and availability impact on the host. Microsoft has released patches across all affected build lines; no public exploit code or CISA KEV listing has been identified at time of analysis.
Privilege escalation in Windows Biometric Service (WbioSrvc) affects every major Windows desktop and server release from Windows 10 1607 through Windows 11 26H1. An authenticated local user with standard (low-privilege) access can trigger a heap-based buffer overflow in the biometric service process, elevating execution to SYSTEM level and achieving full C:H/I:H/A:H compromise of the host. Microsoft has released patched builds across all affected version branches; no public exploit code or CISA KEV listing has been identified at time of analysis, but the enormous footprint of affected Windows versions across both workstation and server estates makes this a high-urgency patch candidate.
Local privilege escalation in Windows Biometric Service (WBioSrvc) allows a low-privileged authenticated local user to achieve full system compromise through a heap-based buffer overflow. The flaw affects a wide range of Windows 10, Windows 11, and Windows Server releases (2016 through 2025), making it broadly relevant across enterprise environments. No public exploit code or active exploitation (CISA KEV) has been identified at time of analysis, but the low attack complexity and minimal privilege requirement make this a meaningful post-exploitation stepping stone.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) enables a low-privileged local attacker to escalate privileges to SYSTEM without user interaction. The flaw spans virtually every supported Windows release - from Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025 - making the attack surface exceptionally broad. Microsoft has released patches for all affected builds; no public exploit code or CISA KEV listing has been identified at time of analysis.
Privilege escalation in Windows Biometric Service via use-after-free (CWE-416) allows a low-privileged, locally authenticated attacker to gain SYSTEM-level access across a broad range of Windows client and server releases. The vulnerability spans Windows 10 through Windows 11 (multiple feature releases) and Windows Server 2016 through 2025, placing it among the widest-footprint Microsoft patch-Tuesday EoP issues. Microsoft has released fixed builds; no public exploit identified at time of analysis.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) enables a locally authenticated low-privilege attacker to escalate to full SYSTEM-level privileges across fifteen distinct Windows 10, Windows 11, and Windows Server build configurations. The flaw (CWE-122) resides in the service's heap memory management and, given the CVSS AC:L rating, is considered straightforward to exploit once local or RDP access is established. Vendor-released patches are available for all affected build lines; no public exploit code and no CISA KEV listing have been identified at the time of analysis.
Heap-based buffer overflow in the Windows Biometric Service (WinBioSrvc) allows a locally authenticated low-privileged attacker to escalate privileges to SYSTEM level across a broad range of Windows desktop and server releases. The flaw (CWE-122) exists in a high-privilege Windows service, making it a reliable local privilege escalation primitive for post-exploitation scenarios. No public exploit identified at time of analysis, and no CISA KEV listing; Microsoft has released patches across all affected version branches.
Heap-based buffer overflow in the Windows Biometric Service (WBioSrvc) allows a locally authenticated low-privileged attacker to escalate privileges to SYSTEM level on affected endpoints and servers. The flaw (CWE-122) spans 15 distinct Windows builds from Windows 10 1607 through Windows Server 2025, making it broadly applicable across most enterprise Windows fleets. No public exploit code or active exploitation has been identified at time of analysis; Microsoft has released patches for all affected versions.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) enables local privilege escalation to SYSTEM on a broad range of Windows client and server platforms. An authenticated low-privileged user can trigger the overflow without user interaction, yielding full confidentiality, integrity, and availability compromise of the affected system. No public exploit code or CISA KEV listing has been identified at time of analysis, but the wide version footprint across Windows 10 through Windows 11 and Server 2016-2025 makes this a significant enterprise patching priority.
Heap-based buffer overflow in Windows Biometric Service (WbioSrvc) enables local privilege escalation to SYSTEM on Windows 10, Windows 11, and Windows Server 2016 through 2025. An attacker with a standard local user account can trigger the overflow without user interaction, achieving full confidentiality, integrity, and availability compromise of the local system. Microsoft has released patches covering all affected versions; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) enables a low-privileged local attacker to escalate privileges to SYSTEM on affected Windows hosts. The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N) confirms low-complexity local exploitation with full confidentiality, integrity, and availability impact, consistent with a service-level privilege escalation. No public exploit code or active exploitation has been identified at time of analysis; a vendor-released patch is available via Microsoft's July 2026 security update.
Heap-based buffer overflow in the Windows Biometric Framework Service enables an authenticated local attacker to escalate privileges to SYSTEM level across a broad range of Windows 10, Windows 11, and Windows Server versions. The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms the flaw is straightforward to trigger with only a low-privileged local account and no user interaction, making it an effective post-compromise escalation primitive. No public exploit or CISA KEV listing is identified at time of analysis; Microsoft has released patches for all affected builds.
Heap-based buffer overflow in Windows Biometric Service (WBioSrvc) enables a low-privileged local attacker to escalate to SYSTEM-level privileges across a broad range of Windows 10, Windows 11, and Windows Server releases. The vulnerability (CWE-122) requires only a valid local account and no user interaction, making it a reliable post-exploitation stepping stone for attackers who have already obtained initial access. Microsoft has released patches across all affected build branches; no public exploit code or active exploitation has been identified at time of analysis.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) enables local privilege escalation to SYSTEM on a wide range of Windows 10, Windows 11, and Windows Server releases. Exploitation requires an authorized, low-privileged local account, after which the attacker achieves full confidentiality, integrity, and availability impact (C:H/I:H/A:H). Microsoft has released patches across all affected version branches; no public exploit has been identified at time of analysis.
Heap-based buffer overflow in Windows Biometric Service (WBioSrvc) enables local privilege escalation to SYSTEM on a broad range of Windows 10, Windows 11, and Windows Server editions. An authorized attacker with low-privilege code execution can corrupt heap memory within the biometric service process to achieve full C:H/I:H/A:H impact without any user interaction. No public exploit code has been identified at time of analysis, and Microsoft has released patches via its regular update channel.
Local privilege escalation in Windows Biometric Service affects a broad sweep of Windows 10, Windows 11, and Windows Server versions through a use-after-free memory corruption condition. An authorized local attacker with standard (low-privilege) credentials can exploit the UAF to elevate to SYSTEM-level access, achieving full confidentiality, integrity, and availability impact on the host. No public exploit or active exploitation has been identified at time of analysis, but the extensive Windows footprint and confirmed vendor patch make timely deployment a clear priority.
Heap-based buffer overflow in the Windows Biometric Service (wbiosrvc) enables a locally authenticated, low-privileged attacker to escalate privileges to SYSTEM-level on a wide range of Windows desktop and server releases, from Windows 10 Version 1607 and Server 2016 through Windows 11 Version 26H1 and Server 2025. The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms the attack requires only a standard user session with no user interaction and no special complexity, making this a reliable post-exploitation LPE primitive. No public exploit code and no CISA KEV listing have been identified at time of analysis; a vendor-released patch is available via Microsoft Security Response Center.
Heap-based buffer overflow in Windows Biometric Service (WBioSrvc) enables a locally authenticated, low-privileged user to escalate to SYSTEM-level privileges on a wide range of Windows 10, Windows 11, and Windows Server 2016-2025 builds. Microsoft has confirmed the issue and released patched builds via Windows Update. No public exploit code or CISA KEV listing exists at time of analysis, but the LPE utility of this class of vulnerability makes it a standard element in post-initial-access attack chains and a meaningful enterprise patch priority.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) enables a locally authenticated low-privileged attacker to achieve SYSTEM-level privilege escalation on any unpatched supported Windows endpoint or server. The vulnerability exists in a default-enabled service present across all supported Windows 10, Windows 11, and Windows Server 2016-2025 builds, making the affected surface essentially every managed Windows environment. No public exploit or CISA KEV listing has been identified at time of analysis; however, AC:L indicates straightforward exploitation once triggered, making this a high-priority patch target given its ubiquitous footprint and value as a post-exploitation escalation primitive.
Privilege escalation in the Windows Kernel enables any authenticated local user to gain SYSTEM-level access through a missing authorization check (CWE-862). The vulnerability spans a broad range of actively supported Windows releases - including Windows 10 1809 through Windows 11 26H1 and Windows Server 2019, 2022, and 2025 - making the affected surface extremely wide. Microsoft has released patched builds via the MSRC update guide; no public exploit code or CISA KEV listing is identified at time of analysis.
Local privilege escalation in the Windows Device Association Service allows an authenticated local attacker to gain SYSTEM-level access via a use-after-free memory corruption condition. The vulnerability spans virtually all supported Windows desktop and server releases - from Windows 10 version 1607 through Windows 11 25H2/26H1 and Windows Server 2016 through 2025. The high complexity (AC:H) rating indicates a race-condition-dependent exploitation path, and no public exploit or CISA KEV listing has been identified at time of analysis; Microsoft has released patches addressing all affected builds.
Heap-based buffer overflow in the Windows Virtual Hard Disk (VHD) miniport driver (vhdmp.sys) allows an attacker who already holds local, low-privileged access on an affected Windows 10, Windows 11, or Windows Server build to corrupt kernel heap memory and potentially execute code in kernel context by triggering driver processing of a mounted VHD/VHDX virtual disk. The issue is rated 7.8 and was addressed by Microsoft as a kernel elevation-of-privilege fix; there is no public exploit identified at time of analysis (SSVC exploitation: none), and EPSS is low at 0.21% (12th percentile), indicating limited near-term exploitation likelihood. Independent assessment scores AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H, so this is a genuine but not high-urgency priority: exploitation requires pre-existing authenticated local access plus heap grooming to overcome high attack complexity, but the technical impact is total because success yields kernel-level control of the host.
Privilege escalation via heap-based buffer overflow (CWE-122) in Windows Hello affects Windows 10, Windows 11, and Windows Server 2019 across numerous build versions, allowing an authorized local attacker with high privileges to cross a security boundary and achieve full system compromise. The CVSS scope-change indicator (S:C) combined with C:H/I:H/A:H signals the overflow can propagate impact beyond the vulnerable Windows Hello component into other security principals - consistent with an admin-to-SYSTEM or authentication-subsystem boundary crossing. No public exploit or CISA KEV listing is present at time of analysis, but a vendor patch is available.
Privilege escalation via out-of-bounds read in Windows Remote Desktop Services affects authenticated low-privileged users across a broad range of Windows 10, Windows 11, and Windows Server releases from 2012 through 2025. An attacker holding valid low-privileged credentials can exploit the CWE-125 memory flaw over the network to achieve full system compromise, with the vendor-assessed impact reaching C:H/I:H/A:H. No public exploit or CISA KEV listing is identified at time of analysis; Microsoft has released patches across all affected build lines.
Use-after-free in the Windows Cloud Files Mini Filter Driver enables a locally authenticated low-privileged attacker to escalate privileges on affected Windows systems. The vulnerability spans a wide range of Windows versions - Windows 10 through Windows 11 26H1 and Windows Server 2019 through 2025 - making the exposed attack surface broad. No public exploit or active exploitation has been confirmed at time of analysis, but the component is loaded on virtually all modern Windows systems that use cloud sync features.
Heap-based buffer overflow in the Windows Work Folders synchronization component allows a locally authenticated low-privileged user to escalate privileges to SYSTEM level across Windows 10 and Windows 11. The vulnerability (CWE-122) stems from improper bounds checking in a privileged Work Folders process and requires only a standard user account with no secondary user interaction. Microsoft has released cumulative updates addressing the flaw; no public exploit or CISA KEV listing has been identified at time of analysis.
Use-after-free in the Windows Reliable Multicast Transport Driver (rmcast.sys) enables unauthenticated remote code execution across all supported Windows versions from Server 2012 to Server 2025 and Windows 10/11. An attacker sending crafted multicast packets over the network can trigger the CWE-416 condition in the kernel-mode driver, leading to corrupted memory that yields arbitrary code execution at kernel privilege. No public exploit or KEV listing has been identified at time of analysis, but the AC:H rating indicates a race condition must be won, slightly raising the bar for reliable weaponization.
Privilege escalation in the Windows Biometric Service (WBS) allows a locally authenticated user to gain SYSTEM-level access by triggering a heap-based buffer overflow in the service process. The flaw spans all currently supported Windows 10, Windows 11, and Windows Server releases from 2016 through 2025, making the attack surface extremely broad. No public exploit code and no CISA KEV listing have been identified at time of analysis; vendor-released patches are available via the July 2026 Patch Tuesday cycle.
Privilege escalation to SYSTEM in Windows Biometric Service via heap-based buffer overflow (CWE-122) affects every supported Windows client and server release from Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025. A low-privileged local authenticated attacker can exploit the flaw with no user interaction required (CVSS AV:L/AC:L/PR:L/UI:N) to achieve full confidentiality, integrity, and availability compromise of the affected system. No public exploit code or CISA KEV listing has been identified at time of analysis; patch availability is confirmed via Microsoft MSRC.
A use-after-free (CWE-416) in the Microsoft Windows Distributed File System (DFS) service lets an attacker who already holds low-privilege authorized access and can reach DFS over the network crash or destabilize the service, producing a denial-of-service condition on the affected host. Windows 10 (1607, 1809, 21H2, 22H2), Windows 11 (23H2 through 26H1) and Windows Server 2012 through 2025 are in scope, and the attack surface only exists where DFS is enabled or in use. Exploitation is limited by the high attack complexity of the underlying memory-reuse race, no public exploit code has been identified at time of analysis, and EPSS is low at 0.61% (47th percentile), so this is a moderate-priority patch rather than an emergency. Vendor-released patches are available through Microsoft's update guide.
Local privilege escalation in Windows Management Instrumentation (WMI) via a use-after-free memory corruption flaw enables any low-privileged local account holder to gain full system compromise (C:H/I:H/A:H) across a sweeping range of Windows client and server versions from Server 2012 through Windows 11 26H1. The CVSS AC:H rating reflects the heap-grooming and race-condition complexity inherent in reliable UAF exploitation. No public exploit has been identified at time of analysis, and Microsoft has released patches across all affected product lines through the MSRC advisory process.
Heap-based buffer overflow in the Windows Volume Manager Extension Driver (volmgrx-class kernel component) allows a local, low-privilege authenticated attacker to escalate privileges to SYSTEM. The vulnerability affects a sweeping range of Windows client and server releases - from Windows Server 2012 through Windows 11 26H1 and Windows Server 2025 - making it broadly applicable across enterprise environments. No public exploit has been identified at time of analysis, and Microsoft has released patches for all affected versions.
Denial of service in the Windows Remote Desktop Client (mstsc) lets a malicious or compromised RDP server crash the client that connects to it by returning crafted data that triggers an integer overflow or wraparound (CWE-190). All supported Windows 10 (1607 through 22H2), Windows 11 (23H2 through 26H1) and Windows Server 2016 through 2025 installations, including Server Core, at builds below their patched revisions are affected in default configurations. Because the flaw is client-side, the attacker cannot reach victims unsolicited - the victim must be induced to open an outbound RDP session to an attacker-controlled endpoint; exploitation has not been observed (CISA SSVC: exploitation none, automatable no) and no public exploit code has been identified at time of analysis, with EPSS at 0.66% (49th percentile), so the risk is genuine but moderate and availability-only, with no code execution or data exposure.
Local privilege escalation in Windows Installer (msiexec) affects every major Windows release from Server 2012 through Windows 11 26H1 and Server 2025, allowing a low-privileged authenticated attacker to achieve full SYSTEM-level control by winning a race condition against the installer's SYSTEM-context file operations. The vulnerability (CWE-362) requires high attack complexity due to the inherent timing constraints of race window exploitation, but no user interaction is needed once local code execution is established. Microsoft has released patches for all affected versions; no public exploit code or CISA KEV listing has been identified at time of analysis.
Remote code execution via a double-free memory corruption flaw (CWE-415) in Microsoft Office Word enables an unauthenticated network-reachable attacker to execute arbitrary code on a victim's machine when the victim opens or previews a specially crafted document (UI:R). The CVSS 3.1 score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) reflects full host compromise upon successful exploitation. No public exploit code has been identified at time of analysis, and a vendor-released patch is available through Microsoft's Security Response Center.
Local privilege escalation in Windows NTFS via an out-of-bounds read (CWE-125) enables a low-privileged local attacker to gain full system-level access across a broad range of Windows desktop and server releases. The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms exploitation requires only a standard local user account with no user interaction and no special configuration. EPSS sits at 0.27% (19th percentile), suggesting limited opportunistic exploitation at this time, and no active exploitation is confirmed via CISA KEV.
Local privilege escalation in the Windows Device Association Service allows a low-privileged authenticated local user to gain SYSTEM-level control across a broad range of Windows 10, Windows 11, and Windows Server releases. The root cause is CWE-763 (Release of Invalid Pointer or Reference) - a memory-safety defect in the service's pointer lifecycle management that, when triggered, enables code execution at elevated privilege. No public exploit code or active exploitation has been identified at time of analysis, but the zero-interaction, low-complexity CVSS vector makes this a high-priority patching target for any organization running unpatched Windows endpoints or servers.
Heap-based buffer overflow in Windows Imaging Component (WIC) enables network-delivered code execution on any Windows system where a user opens a crafted image file. The flaw affects an extremely broad surface spanning Windows Server 2012 through Windows Server 2025 and Windows 11 26H1, making it relevant to virtually every Windows-based enterprise environment. Microsoft has released patches; no public exploit or CISA KEV listing was identified at time of analysis, though the low-complexity, no-privileges-required vector is conducive to phishing-style mass targeting.
Remote code execution in the Microsoft Graphics Component (GDI/graphics stack) affects the full supported Windows line - Windows 10 (1607-22H2), Windows 11 (23H2-26H1), and Windows Server 2012 through 2025 - where a double free (CWE-415) lets a remote attacker corrupt memory and run arbitrary code. Microsoft rates it CVSS 9.8 with a fully unauthenticated network vector and full confidentiality, integrity, and availability impact. No public exploit is identified at time of analysis and it is not listed in CISA KEV, but the ubiquity of the affected component and Patch-Tuesday-class severity make it a high-priority fix.
Local privilege escalation in Windows Biometric Service (WbioSrvc) allows any low-privileged authenticated user to gain SYSTEM-level access via a null pointer dereference (CWE-476) in the Windows Biometric Framework. Affecting Windows 10 through Windows 11 26H1 and Windows Server 2016 through 2025, the flaw is present across virtually the entire modern Windows ecosystem. No public exploit identified at time of analysis; Microsoft has released patches across all affected branches.
Local privilege escalation via heap-based buffer overflow in the Windows Biometric Service (WinBio) affects a broad range of Windows 10, Windows 11, and Windows Server releases from 2016 through 2025. An authorized low-privileged local user can exploit the memory corruption flaw to achieve full SYSTEM-level code execution with high confidentiality, integrity, and availability impact. No public exploit code has been identified at time of analysis, but the broad platform footprint and straightforward CVSS vector (AC:L, PR:L, UI:N) make this a high-priority patching target for enterprise Windows environments.
Heap-based buffer overflow in the Windows Services for NFS ONCRPC XDR Driver enables a locally authenticated attacker with standard user privileges to escalate to SYSTEM on a wide range of Windows and Windows Server releases. The affected component handles ONC RPC data serialization for NFS operations; triggering the overflow requires only an existing local session and no user interaction. Microsoft has released build-specific patches covering Windows 10 through Windows 11 and Windows Server 2012 through Server 2025; no public exploit code or CISA KEV listing has been identified at time of analysis.
Remote code execution is possible in Windows Imaging Component (WIC) across a broad range of Microsoft Windows desktop and server releases via a heap-based buffer overflow triggered when a user opens or previews a specially crafted image file. The flaw is reachable over the network with no privileges required, making phishing or drive-by delivery viable attack vectors. No public exploit code or active exploitation (CISA KEV) has been identified at time of analysis; a vendor-released patch is available via Windows Update.
Local privilege escalation in Windows Modern Device Management (MDM) allows an authenticated low-privilege attacker to achieve full SYSTEM-level access via a use-after-free (CWE-416) memory corruption condition. The flaw spans an exceptionally broad surface - from Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025 - making it relevant to virtually every supported enterprise Windows deployment using MDM enrollment. Vendor patches are available via the MSRC advisory; no public exploit code or active exploitation has been identified at time of analysis.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) allows a locally authenticated low-privileged attacker to escalate privileges to SYSTEM on affected Windows 10, Windows 11, and Windows Server 2016 through 2025 installations. The vulnerability is exploitable with no user interaction beyond local code execution rights, and affects virtually the entire supported Windows ecosystem - from Windows 10 version 1607 through Windows 11 26H1 and all major Server SKUs. No public exploit code or CISA KEV listing has been identified at time of analysis, but a vendor-released patch is available.
Heap-based buffer overflow in Windows Biometric Service (WbioSrvc) enables an authenticated local attacker with standard user privileges to escalate to SYSTEM-level access across a wide range of Windows releases spanning Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025. Microsoft has released patches for all fifteen affected product/version combinations via the standard Windows Update channel. No public exploit code has been identified and this CVE does not appear in the CISA KEV catalog, though the CVSS AC:L rating indicates reliable exploitation without race conditions, making this a credible post-compromise privilege escalation primitive.
Heap-based buffer overflow in the Windows Graphic Fonts font-processing component enables remote code execution across virtually the entire Windows ecosystem, from Server 2012 to Windows 11 26H1 and Server 2025. The attack vector is network-based with user interaction required (CVSS AV:N/UI:R), consistent with a font delivered via a malicious document or webpage that triggers the vulnerable parser. Microsoft has released patches across all affected platform versions; no public exploit code or active exploitation via CISA KEV has been identified at the time of analysis.
Heap-based buffer overflow in the Windows Graphics Kernel subsystem allows a locally authenticated, high-privileged attacker to execute arbitrary code with scope change to kernel context. The vulnerability affects a wide swath of Windows 10, Windows 11, and Windows Server releases from build 1809 through Server 2025. No public exploit or CISA KEV listing has been identified at time of analysis; a vendor-released patch is available through the Microsoft Security Response Center.
Heap-based buffer overflow in the Microsoft Graphics Component enables remote code execution across a broad range of Windows client and server editions from Windows 10 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025. An unauthenticated network-based attacker can exploit this flaw by inducing a user to interact with maliciously crafted graphical content, triggering a CWE-122 heap overflow that yields full C:H/I:H/A:H impact. No public exploit code or CISA KEV listing is identified at time of analysis; vendor patch is available via Microsoft's August 2026 Patch Tuesday.
Local privilege escalation via heap-based buffer overflow in Windows Biometric Service (WbioSrvc) affects authorized standard users across a sweeping range of Windows 10, Windows 11, and Windows Server versions from 2016 through 2025. A low-privileged local attacker can trigger the CWE-122 heap overflow to achieve full SYSTEM-level control (C:H/I:H/A:H) without user interaction. No public exploit code or active exploitation has been identified at time of analysis, though the ubiquity of the affected platform and the low attack complexity make this a meaningful post-access privilege escalation primitive.
Local privilege escalation in the Windows Data Sharing Service Client (DsSvc) enables a low-privileged authenticated local user to gain SYSTEM-level access across a sweeping range of Windows 10, Windows 11, and Windows Server releases. The root cause is CWE-862 (Missing Authorization): the service client fails to enforce authorization checks on operations that should be restricted to higher-privilege callers, allowing a standard user account to invoke privileged service operations without additional conditions. Vendor-released patches are available via Microsoft's update guide; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Windows Imaging Component (WIC) enables remote unauthenticated attackers to execute arbitrary code on affected Windows systems when a user opens or previews a specially crafted image file. Affected platforms span Windows 10/11 desktop editions and Windows Server 2012 through 2025, covering a core OS image-processing library consumed by Explorer, Office, and countless third-party applications. No public exploit identified at time of analysis, but the unauthenticated network-reachable vector with a low-friction user-interaction trigger makes this a high patch-priority item given the enormous install base.
Heap-based buffer overflow in Windows Management Services enables a network-reachable, low-privileged authenticated attacker to escalate privileges with high impact across confidentiality, integrity, and availability on affected Windows systems. The vulnerability spans a broad range of Windows releases from Windows Server 2012 through Windows Server 2025 and Windows 10 through Windows 11 26H1, making the remediation surface unusually wide. No public exploit code has been identified at time of analysis, but the low attack complexity and network reachability make this a high-priority patch-cycle item.
Privilege escalation in the Windows Biometric Service (wbiosrvc) allows a locally authenticated low-privileged user to gain SYSTEM-level access via a heap-based buffer overflow. Affecting 15 distinct Windows client and server builds spanning Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025, the flaw requires only a standard user account and no interaction from any other user. Microsoft has released patched builds across all affected product lines; no public exploit code or CISA KEV listing has been identified at time of analysis.
Remote code execution in the Windows Secure Socket Tunneling Protocol (SSTP) service lets an unauthenticated network attacker run arbitrary code on affected hosts by triggering a use-after-free condition. The flaw spans nearly the entire supported Windows family (Windows 10/11 through 26H1 and Windows Server 2012 through 2025), carries a CVSS 9.8, and was reported by Microsoft's own security team with a patch now available. No public exploit is identified at time of analysis; exposure in practice is gated on hosts actually running an SSTP VPN listener.
Heap-based buffer overflow in the Windows Biometric Service (WBioSrvc) allows a locally authenticated standard user to escalate privileges to SYSTEM on a broad range of affected Windows desktop and server editions. The flaw (CWE-122) requires only low-privilege local access with no user interaction, making it an attractive post-compromise escalation primitive. Microsoft has released patches across all affected branches; no public exploit or CISA KEV listing has been identified at time of analysis.
Stack-based buffer overflow in the Windows Graphics Component enables unauthenticated remote attackers to achieve arbitrary code execution on affected systems when a victim interacts with specially crafted graphical content. The vulnerability spans all currently supported Windows 10, Windows 11, and Windows Server editions from 2016 through 2025, making the attack surface exceptionally broad. Microsoft has released patches as part of the monthly security update cycle; no confirmed active exploitation or public proof-of-concept has been identified at time of analysis.
Local privilege escalation in Windows Authentication Methods affects all supported Windows 10, Windows 11, and Windows Server releases through a use-after-free condition triggered via a race condition (CWE-362). An attacker with low-privileged local access can win a timing window in the authentication subsystem, corrupt freed memory, and elevate to full SYSTEM-level privileges with complete confidentiality, integrity, and availability impact. No public exploit or CISA KEV listing has been identified at time of analysis, but the breadth of affected versions - spanning every major Windows release from Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025 - makes this a high-priority patch for any Windows fleet.
Privilege escalation in Windows Modern Device Management (MDM) allows a locally authenticated attacker with low privileges to gain full system-level access via a use-after-free memory corruption condition. The vulnerability affects a broad surface of Windows 10, Windows 11, and Windows Server 2019-2025 builds. Microsoft has released patches across all affected product lines; no public exploit or active exploitation (KEV) has been identified at time of analysis.
Local privilege escalation in Windows Biometric Service (WBioSrvc) allows a low-privileged authenticated user to gain full system control via an integer overflow or wraparound (CWE-190). Affected versions span Windows 10, Windows 11, and Windows Server 2016 through 2025, with Microsoft providing patched builds across all affected product lines. No public exploit code or CISA KEV listing was identified at time of analysis, but the low attack complexity and absence of user-interaction requirement make this a high-value post-compromise escalation primitive.
Heap-based buffer overflow in the Windows Biometric Service (WBF) enables a locally authenticated attacker to escalate privileges to SYSTEM on a wide range of Windows desktop and server versions. The flaw (CWE-122) is reachable by any standard user account and requires no user interaction, yielding full confidentiality, integrity, and availability compromise on the vulnerable host. Patch is available via Microsoft's Patch Tuesday update cycle; SSVC assessment indicates no exploitation observed and the attack is not automatable.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) enables any locally authenticated standard user to escalate privileges to SYSTEM across virtually all supported Windows 10, Windows 11, and Windows Server editions. The flaw (CWE-122) exploits the service's privileged execution context combined with its exposure to requests from low-privileged user sessions, yielding full confidentiality, integrity, and availability compromise of the host. Microsoft has released patched builds across all affected platforms; no active exploitation is confirmed in CISA KEV and no public exploit code has been identified at time of analysis.
Local privilege escalation in Windows Biometric Service (WinBio) allows an authenticated low-privileged user to gain full system control via a heap-based buffer overflow. The flaw spans a broad surface - Windows 10 versions 1607 through 22H2, Windows 11 versions 23H2 through 26H1, and Windows Server 2016 through 2025 - all pre-patched builds are affected. Microsoft has released security updates addressing the overflow; no public exploit code or active exploitation (CISA KEV) has been identified at time of analysis.
Heap-based buffer overflow in the Windows Biometric Service enables local privilege escalation to SYSTEM-level access across a wide range of Windows client and server releases. Any low-privileged, authorized local user can trigger the overflow without user interaction, yielding full confidentiality, integrity, and availability compromise of the affected host. Vendor patch is available from Microsoft; no public exploit has been identified at time of analysis.
Heap-based buffer overflow in Windows Biometric Service (WbioSrvc) enables local privilege escalation across a wide range of Windows client and server editions from 2016 through current 2025 builds. An authenticated local attacker exploiting CWE-122 can corrupt heap memory to achieve full system-level compromise (C:H/I:H/A:H), making this a practical post-exploitation stepping stone after initial access. Microsoft has released patches for all affected versions; SSVC rates exploitation as none at time of analysis and no public exploit code has been identified.
Privilege escalation to SYSTEM-level in Windows Biometric Service (WinBioSrvc) affects virtually all supported Windows releases, from Windows 10 version 1607 through Windows 11 26H1 and Windows Server 2016 through 2025. An authorized local attacker with low-privilege code execution can exploit a heap-based buffer overflow in the biometric service process to achieve full local compromise - gaining high confidentiality, integrity, and availability impact. No public exploit has been identified at time of analysis, and Microsoft has released patches across all 15 affected build branches as confirmed by EUVD-2026-73750.
Heap-based buffer overflow in Windows Biometric Service (WbioSrvc) enables an authenticated local attacker with standard user privileges to escalate to SYSTEM-level access on affected Windows endpoints and servers. The vulnerability spans a broad surface - Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025 - making it relevant across virtually all enterprise Windows deployments. No public exploit code or CISA KEV listing has been identified at time of analysis, but low attack complexity (AC:L) and the wide affected version range make this a meaningful patching priority.
Privilege escalation via heap-based buffer overflow in the Windows Biometric Service (wbiosrvc) affects the full current Windows ecosystem, from Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025. An authenticated local user can trigger the overflow to achieve full SYSTEM-level code execution, with complete confidentiality, integrity, and availability impact on the local machine. No public exploit code has been identified at time of analysis, and Microsoft has released patches across all affected build branches via the standard update guide.
Heap-based buffer overflow in the Windows Biometric Service (WinBioSrv) enables a locally authenticated standard user to escalate privileges to SYSTEM on affected Windows endpoints and servers. The vulnerability spans virtually every currently supported Windows release - from Windows 10 1607 and Server 2016 through Windows 11 26H1 and Server 2025 - making organizational exposure exceptionally broad. Microsoft has released patched builds via the standard Patch Tuesday cycle; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Windows Biometric Service (wbiosrvc.exe) enables a low-privileged local attacker to escalate to SYSTEM-level privileges across all major Windows 10, Windows 11, and Windows Server 2016 through 2025 releases. The flaw (CWE-122) can be triggered with low complexity and no user interaction, yielding full confidentiality, integrity, and availability impact over the affected host. No public exploit has been identified at time of analysis; Microsoft has released patches covering all affected build lines.
Heap-based buffer overflow in Windows Biometric Service (WinBio) enables a locally authenticated low-privileged user to escalate privileges to SYSTEM on affected Windows hosts. The flaw spans a wide range of Windows versions from Windows 10 1607 and Server 2016 through Windows 11 26H1 and Server 2025, representing effectively the entire current Microsoft ecosystem. Vendor-released patches are available; no public exploit code or active exploitation has been identified at time of analysis.
Heap-based buffer overflow in Windows' Graphic Fonts component (CWE-122) enables unauthenticated remote attackers to achieve arbitrary code execution on a wide range of Windows client and server editions by inducing a user to open or preview maliciously crafted font data. Affecting 19 distinct Windows product lines from Server 2012 through Windows 11 26H1, the vulnerability carries a CVSS 3.1 score of 8.8 with full C:H/I:H/A:H impact. A vendor-released patch is available via Microsoft's Update Guide; no public exploit code or CISA KEV listing has been identified at time of analysis.
Remote code execution in the Windows Internet Connection Sharing (ICS) service stems from a use-after-free (CWE-416) that a network attacker can trigger without authentication or user interaction. Every supported Windows client and server branch is affected, from Windows Server 2012 through Windows 11 25H2 and Server 2025. There is no public exploit identified at time of analysis and CISA SSVC records exploitation status as none, but the flaw is rated total technical impact and automatable, and Microsoft has shipped patches.
Remote code execution in the Windows Netlogon service affects a broad range of Windows client and server releases (Windows 10, Windows 11 through 26H1, and Windows Server 2012 through 2025), where a stack-based buffer overflow lets an unauthenticated network attacker run arbitrary code. Because Netlogon underpins the secure channel between domain members and domain controllers, exploitation against a DC can lead to full domain compromise. Microsoft has released patches; there is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV.
Remote code execution in Windows IP Helper (iphlpapi) affects every supported Windows client and server release from Windows Server 2012 through Windows 11 26H2. An unauthenticated network attacker who can trigger the use-after-free condition in the IP Helper service may gain full code execution on the target system - confidentiality, integrity, and availability all rated High. Patch Tuesday security updates remediate the flaw across all affected build lines; no public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in the Windows Network Connection Broker service enables a locally authenticated, low-privileged attacker to escalate privileges to SYSTEM on affected Windows endpoints and servers. The vulnerability spans an exceptionally wide range of Microsoft platforms - from Windows Server 2012 through Windows Server 2025 and Windows 10/11 across multiple feature updates - making it a broad-surface local privilege escalation risk. No public exploit or CISA KEV listing has been identified at time of analysis, but Microsoft has released patches via the standard Patch Tuesday update cycle.
Local privilege escalation via use-after-free in the Windows WebClient (WebDAV client) Service affects virtually every supported Windows desktop and server release, from Server 2012 through Windows 11 and Server 2025. An authenticated local attacker with standard user privileges can exploit the memory-safety flaw to achieve full SYSTEM-level control, gaining complete confidentiality, integrity, and availability over the host. No public exploit has been identified at time of analysis, and Microsoft has released patched builds for all affected versions via its standard Patch Tuesday update mechanism.
Local privilege escalation in the Windows Modern Execution Server component allows an authenticated low-privileged attacker to gain full system control via a use-after-free memory corruption flaw. The vulnerability affects a broad range of Windows 10, Windows 11, and Windows Server releases from build 10.0.14393 through 10.0.28000. Microsoft has released patched builds addressing the flaw; no public exploit or CISA KEV listing is identified at time of analysis, though the CVSS AC:H rating suggests exploitation requires precise timing or specific memory state conditions.
Heap-based buffer overflow in the Windows USB Video Driver (CWE-122) allows a locally authenticated, high-privileged attacker to escalate privileges with scope change, achieving full confidentiality, integrity, and availability impact across the broader system. Twelve Windows editions are confirmed affected, from Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025. Vendor-released patches are available via Microsoft's update guide; no public exploit or CISA KEV listing is identified at time of analysis.
Heap-based buffer overflow in Windows Hyper-V allows a locally authenticated attacker with high privileges to escalate privileges and escape the guest VM boundary, achieving scope change to the underlying host. Affected across a broad range of Windows 10, 11, and Windows Server releases from 2016 through 2025. Vendor-released patches are available; no public exploit or CISA KEV listing identified at time of analysis.
Heap-based buffer overflow in Windows Media Player enables network-delivered remote code execution across 15 Windows OS SKUs, from Windows 10 1607 through Windows 11 25H2 and Windows Server 2016 through 2025. An unauthenticated remote attacker who can entice a user to open a crafted media file triggers memory corruption yielding full code execution at the victim's privilege level (C:H/I:H/A:H). No active exploitation is confirmed in CISA KEV and no public exploit code has been identified at time of analysis, though the ubiquitous Windows footprint and well-understood heap-overflow exploit class warrant priority patching.
Remote code execution in Windows Routing and Remote Access Service (RRAS) allows a low-privileged network attacker to fully compromise affected Windows systems via a heap-based buffer overflow in the RRAS service. The vulnerability spans an unusually wide range of releases - Windows Server 2012 through Server 2025 and Windows 10/11 - suggesting a systemic flaw in a shared RRAS code path. Microsoft has released patches through its Security Update Guide (MSRC); no public exploit code or CISA KEV listing has been identified at time of analysis.
Privilege escalation via heap-based buffer overflow in the Windows USB driver stack allows a low-privileged local attacker to gain SYSTEM-level access on affected Windows 10, Windows 11, and Windows Server versions. The vulnerability (CWE-122) resides in kernel-mode USB driver handling, where malformed or malicious USB-related input can corrupt heap memory and redirect execution. No public exploit code has been identified at time of analysis, and the flaw is not listed in CISA KEV; however, the low attack complexity and broad Windows footprint make this a meaningful post-exploitation and insider-threat vector.
Local privilege escalation in Windows Spaceport.sys, the Storage Spaces kernel driver, allows a low-privileged local user to execute arbitrary code at the kernel level across a broad range of Windows 10, 11, and Server editions. The CWE-125 out-of-bounds read in this kernel driver can be leveraged - under high-complexity conditions such as heap grooming - to corrupt adjacent kernel memory structures and redirect execution, yielding SYSTEM-level privileges. Microsoft has released patches for all affected builds, and no public exploit code or confirmed active exploitation has been identified at time of analysis.
Heap-based buffer overflow in Windows Imaging Component (WIC) enables remote code execution across a wide range of Microsoft Windows desktop and server editions. Exploitation requires a user to open or preview a maliciously crafted image file - consistent with the UI:R CVSS metric - which triggers CWE-122 heap corruption that can be leveraged for arbitrary code execution with full confidentiality, integrity, and availability impact. The vulnerability spans Windows Server 2012 through Server 2025 and Windows 10/11 across all current servicing branches; Microsoft has issued patches for all affected release lines, and no public exploit or CISA KEV entry has been identified at time of analysis.
Out-of-bounds read in the Windows Services for NFS ONCRPC XDR Driver enables unauthenticated remote attackers to crash the affected Windows system, causing a denial-of-service condition. The flaw resides in the kernel-mode driver that processes ONC RPC (Open Network Computing Remote Procedure Call) External Data Representation (XDR) packets, meaning a specially crafted network request can trigger a memory read beyond intended buffer boundaries - most likely a kernel panic (Blue Screen of Death). The affected surface spans Windows 10, Windows 11, and Windows Server versions from 2012 through 2025; a vendor patch is available via Microsoft's update guide. No public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in the Windows Biometric Service (WBioSrvc) enables a locally authenticated low-privileged attacker to escalate to SYSTEM-level privileges with no user interaction required. The vulnerability spans Windows 10 (versions 1607 through 22H2), Windows 11 (versions 23H2 through 26H1), and Windows Server 2016 through 2025, making it one of the broadest-scope local privilege escalation issues in the current patch cycle. Microsoft has released patches across all affected branches; no public exploit code or CISA KEV active exploitation entry has been identified at time of analysis.
Heap-based buffer overflow in Windows Biometric Service (WbioSrvc) enables a local attacker with low-privilege code execution to escalate to SYSTEM-level privileges across a broad range of Windows 10, Windows 11, and Windows Server releases. Exploitation requires no user interaction and no elevated starting privileges beyond a standard user session. No public exploit code or CISA KEV listing has been identified at time of analysis; Microsoft has released patches for all affected versions via the update guide at msrc.microsoft.com.
Local privilege escalation via heap-based buffer overflow (CWE-122) in the Windows Biometric Service (WBioSrvc) affects Windows 10, Windows 11, and Windows Server 2016 through 2025 across a broad range of build versions. An authorized local attacker with low privileges can trigger the overflow to corrupt heap memory and achieve SYSTEM-level access, yielding full confidentiality, integrity, and availability impact on the local machine. Microsoft has released patches through the standard Patch Tuesday cycle; no active exploitation or public proof-of-concept has been identified at time of analysis.
Heap-based buffer overflow in Windows Biometric Service (WinBio) enables a locally authenticated attacker with standard user privileges to escalate to SYSTEM-level access across a broad swath of Windows 10, Windows 11, and Windows Server editions. The vulnerability is rooted in CWE-122 (heap buffer overflow) within the service that manages biometric devices such as fingerprint readers and Windows Hello. Microsoft has released patches via the MSRC update guide; no public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in the Windows Biometric Service (wbiosrvc) enables any authenticated local user to elevate privileges to SYSTEM across a broad range of Windows 10, Windows 11, and Windows Server releases. The CVSS 7.8 vector (AV:L/AC:L/PR:L/UI:N) reflects straightforward exploitation conditions - no complex setup or user interaction required - with full confidentiality, integrity, and availability impact on the host. Microsoft has released patches across all affected build lines; no public exploit code or CISA KEV listing has been identified at time of analysis.
Privilege escalation in Windows Biometric Service (WbioSrvc) affects every major Windows desktop and server release from Windows 10 1607 through Windows 11 26H1. An authenticated local user with standard (low-privilege) access can trigger a heap-based buffer overflow in the biometric service process, elevating execution to SYSTEM level and achieving full C:H/I:H/A:H compromise of the host. Microsoft has released patched builds across all affected version branches; no public exploit code or CISA KEV listing has been identified at time of analysis, but the enormous footprint of affected Windows versions across both workstation and server estates makes this a high-urgency patch candidate.
Local privilege escalation in Windows Biometric Service (WBioSrvc) allows a low-privileged authenticated local user to achieve full system compromise through a heap-based buffer overflow. The flaw affects a wide range of Windows 10, Windows 11, and Windows Server releases (2016 through 2025), making it broadly relevant across enterprise environments. No public exploit code or active exploitation (CISA KEV) has been identified at time of analysis, but the low attack complexity and minimal privilege requirement make this a meaningful post-exploitation stepping stone.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) enables a low-privileged local attacker to escalate privileges to SYSTEM without user interaction. The flaw spans virtually every supported Windows release - from Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025 - making the attack surface exceptionally broad. Microsoft has released patches for all affected builds; no public exploit code or CISA KEV listing has been identified at time of analysis.
Privilege escalation in Windows Biometric Service via use-after-free (CWE-416) allows a low-privileged, locally authenticated attacker to gain SYSTEM-level access across a broad range of Windows client and server releases. The vulnerability spans Windows 10 through Windows 11 (multiple feature releases) and Windows Server 2016 through 2025, placing it among the widest-footprint Microsoft patch-Tuesday EoP issues. Microsoft has released fixed builds; no public exploit identified at time of analysis.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) enables a locally authenticated low-privilege attacker to escalate to full SYSTEM-level privileges across fifteen distinct Windows 10, Windows 11, and Windows Server build configurations. The flaw (CWE-122) resides in the service's heap memory management and, given the CVSS AC:L rating, is considered straightforward to exploit once local or RDP access is established. Vendor-released patches are available for all affected build lines; no public exploit code and no CISA KEV listing have been identified at the time of analysis.
Heap-based buffer overflow in the Windows Biometric Service (WinBioSrvc) allows a locally authenticated low-privileged attacker to escalate privileges to SYSTEM level across a broad range of Windows desktop and server releases. The flaw (CWE-122) exists in a high-privilege Windows service, making it a reliable local privilege escalation primitive for post-exploitation scenarios. No public exploit identified at time of analysis, and no CISA KEV listing; Microsoft has released patches across all affected version branches.
Heap-based buffer overflow in the Windows Biometric Service (WBioSrvc) allows a locally authenticated low-privileged attacker to escalate privileges to SYSTEM level on affected endpoints and servers. The flaw (CWE-122) spans 15 distinct Windows builds from Windows 10 1607 through Windows Server 2025, making it broadly applicable across most enterprise Windows fleets. No public exploit code or active exploitation has been identified at time of analysis; Microsoft has released patches for all affected versions.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) enables local privilege escalation to SYSTEM on a broad range of Windows client and server platforms. An authenticated low-privileged user can trigger the overflow without user interaction, yielding full confidentiality, integrity, and availability compromise of the affected system. No public exploit code or CISA KEV listing has been identified at time of analysis, but the wide version footprint across Windows 10 through Windows 11 and Server 2016-2025 makes this a significant enterprise patching priority.
Heap-based buffer overflow in Windows Biometric Service (WbioSrvc) enables local privilege escalation to SYSTEM on Windows 10, Windows 11, and Windows Server 2016 through 2025. An attacker with a standard local user account can trigger the overflow without user interaction, achieving full confidentiality, integrity, and availability compromise of the local system. Microsoft has released patches covering all affected versions; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) enables a low-privileged local attacker to escalate privileges to SYSTEM on affected Windows hosts. The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N) confirms low-complexity local exploitation with full confidentiality, integrity, and availability impact, consistent with a service-level privilege escalation. No public exploit code or active exploitation has been identified at time of analysis; a vendor-released patch is available via Microsoft's July 2026 security update.
Heap-based buffer overflow in the Windows Biometric Framework Service enables an authenticated local attacker to escalate privileges to SYSTEM level across a broad range of Windows 10, Windows 11, and Windows Server versions. The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms the flaw is straightforward to trigger with only a low-privileged local account and no user interaction, making it an effective post-compromise escalation primitive. No public exploit or CISA KEV listing is identified at time of analysis; Microsoft has released patches for all affected builds.
Heap-based buffer overflow in Windows Biometric Service (WBioSrvc) enables a low-privileged local attacker to escalate to SYSTEM-level privileges across a broad range of Windows 10, Windows 11, and Windows Server releases. The vulnerability (CWE-122) requires only a valid local account and no user interaction, making it a reliable post-exploitation stepping stone for attackers who have already obtained initial access. Microsoft has released patches across all affected build branches; no public exploit code or active exploitation has been identified at time of analysis.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) enables local privilege escalation to SYSTEM on a wide range of Windows 10, Windows 11, and Windows Server releases. Exploitation requires an authorized, low-privileged local account, after which the attacker achieves full confidentiality, integrity, and availability impact (C:H/I:H/A:H). Microsoft has released patches across all affected version branches; no public exploit has been identified at time of analysis.
Heap-based buffer overflow in Windows Biometric Service (WBioSrvc) enables local privilege escalation to SYSTEM on a broad range of Windows 10, Windows 11, and Windows Server editions. An authorized attacker with low-privilege code execution can corrupt heap memory within the biometric service process to achieve full C:H/I:H/A:H impact without any user interaction. No public exploit code has been identified at time of analysis, and Microsoft has released patches via its regular update channel.
Local privilege escalation in Windows Biometric Service affects a broad sweep of Windows 10, Windows 11, and Windows Server versions through a use-after-free memory corruption condition. An authorized local attacker with standard (low-privilege) credentials can exploit the UAF to elevate to SYSTEM-level access, achieving full confidentiality, integrity, and availability impact on the host. No public exploit or active exploitation has been identified at time of analysis, but the extensive Windows footprint and confirmed vendor patch make timely deployment a clear priority.
Heap-based buffer overflow in the Windows Biometric Service (wbiosrvc) enables a locally authenticated, low-privileged attacker to escalate privileges to SYSTEM-level on a wide range of Windows desktop and server releases, from Windows 10 Version 1607 and Server 2016 through Windows 11 Version 26H1 and Server 2025. The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms the attack requires only a standard user session with no user interaction and no special complexity, making this a reliable post-exploitation LPE primitive. No public exploit code and no CISA KEV listing have been identified at time of analysis; a vendor-released patch is available via Microsoft Security Response Center.
Heap-based buffer overflow in Windows Biometric Service (WBioSrvc) enables a locally authenticated, low-privileged user to escalate to SYSTEM-level privileges on a wide range of Windows 10, Windows 11, and Windows Server 2016-2025 builds. Microsoft has confirmed the issue and released patched builds via Windows Update. No public exploit code or CISA KEV listing exists at time of analysis, but the LPE utility of this class of vulnerability makes it a standard element in post-initial-access attack chains and a meaningful enterprise patch priority.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) enables a locally authenticated low-privileged attacker to achieve SYSTEM-level privilege escalation on any unpatched supported Windows endpoint or server. The vulnerability exists in a default-enabled service present across all supported Windows 10, Windows 11, and Windows Server 2016-2025 builds, making the affected surface essentially every managed Windows environment. No public exploit or CISA KEV listing has been identified at time of analysis; however, AC:L indicates straightforward exploitation once triggered, making this a high-priority patch target given its ubiquitous footprint and value as a post-exploitation escalation primitive.
Privilege escalation in the Windows Kernel enables any authenticated local user to gain SYSTEM-level access through a missing authorization check (CWE-862). The vulnerability spans a broad range of actively supported Windows releases - including Windows 10 1809 through Windows 11 26H1 and Windows Server 2019, 2022, and 2025 - making the affected surface extremely wide. Microsoft has released patched builds via the MSRC update guide; no public exploit code or CISA KEV listing is identified at time of analysis.
Local privilege escalation in the Windows Device Association Service allows an authenticated local attacker to gain SYSTEM-level access via a use-after-free memory corruption condition. The vulnerability spans virtually all supported Windows desktop and server releases - from Windows 10 version 1607 through Windows 11 25H2/26H1 and Windows Server 2016 through 2025. The high complexity (AC:H) rating indicates a race-condition-dependent exploitation path, and no public exploit or CISA KEV listing has been identified at time of analysis; Microsoft has released patches addressing all affected builds.
Heap-based buffer overflow in the Windows Virtual Hard Disk (VHD) miniport driver (vhdmp.sys) allows an attacker who already holds local, low-privileged access on an affected Windows 10, Windows 11, or Windows Server build to corrupt kernel heap memory and potentially execute code in kernel context by triggering driver processing of a mounted VHD/VHDX virtual disk. The issue is rated 7.8 and was addressed by Microsoft as a kernel elevation-of-privilege fix; there is no public exploit identified at time of analysis (SSVC exploitation: none), and EPSS is low at 0.21% (12th percentile), indicating limited near-term exploitation likelihood. Independent assessment scores AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H, so this is a genuine but not high-urgency priority: exploitation requires pre-existing authenticated local access plus heap grooming to overcome high attack complexity, but the technical impact is total because success yields kernel-level control of the host.
Privilege escalation via heap-based buffer overflow (CWE-122) in Windows Hello affects Windows 10, Windows 11, and Windows Server 2019 across numerous build versions, allowing an authorized local attacker with high privileges to cross a security boundary and achieve full system compromise. The CVSS scope-change indicator (S:C) combined with C:H/I:H/A:H signals the overflow can propagate impact beyond the vulnerable Windows Hello component into other security principals - consistent with an admin-to-SYSTEM or authentication-subsystem boundary crossing. No public exploit or CISA KEV listing is present at time of analysis, but a vendor patch is available.
Privilege escalation via out-of-bounds read in Windows Remote Desktop Services affects authenticated low-privileged users across a broad range of Windows 10, Windows 11, and Windows Server releases from 2012 through 2025. An attacker holding valid low-privileged credentials can exploit the CWE-125 memory flaw over the network to achieve full system compromise, with the vendor-assessed impact reaching C:H/I:H/A:H. No public exploit or CISA KEV listing is identified at time of analysis; Microsoft has released patches across all affected build lines.
Use-after-free in the Windows Cloud Files Mini Filter Driver enables a locally authenticated low-privileged attacker to escalate privileges on affected Windows systems. The vulnerability spans a wide range of Windows versions - Windows 10 through Windows 11 26H1 and Windows Server 2019 through 2025 - making the exposed attack surface broad. No public exploit or active exploitation has been confirmed at time of analysis, but the component is loaded on virtually all modern Windows systems that use cloud sync features.
Heap-based buffer overflow in the Windows Work Folders synchronization component allows a locally authenticated low-privileged user to escalate privileges to SYSTEM level across Windows 10 and Windows 11. The vulnerability (CWE-122) stems from improper bounds checking in a privileged Work Folders process and requires only a standard user account with no secondary user interaction. Microsoft has released cumulative updates addressing the flaw; no public exploit or CISA KEV listing has been identified at time of analysis.
Use-after-free in the Windows Reliable Multicast Transport Driver (rmcast.sys) enables unauthenticated remote code execution across all supported Windows versions from Server 2012 to Server 2025 and Windows 10/11. An attacker sending crafted multicast packets over the network can trigger the CWE-416 condition in the kernel-mode driver, leading to corrupted memory that yields arbitrary code execution at kernel privilege. No public exploit or KEV listing has been identified at time of analysis, but the AC:H rating indicates a race condition must be won, slightly raising the bar for reliable weaponization.
Privilege escalation in the Windows Biometric Service (WBS) allows a locally authenticated user to gain SYSTEM-level access by triggering a heap-based buffer overflow in the service process. The flaw spans all currently supported Windows 10, Windows 11, and Windows Server releases from 2016 through 2025, making the attack surface extremely broad. No public exploit code and no CISA KEV listing have been identified at time of analysis; vendor-released patches are available via the July 2026 Patch Tuesday cycle.
Privilege escalation to SYSTEM in Windows Biometric Service via heap-based buffer overflow (CWE-122) affects every supported Windows client and server release from Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025. A low-privileged local authenticated attacker can exploit the flaw with no user interaction required (CVSS AV:L/AC:L/PR:L/UI:N) to achieve full confidentiality, integrity, and availability compromise of the affected system. No public exploit code or CISA KEV listing has been identified at time of analysis; patch availability is confirmed via Microsoft MSRC.
A use-after-free (CWE-416) in the Microsoft Windows Distributed File System (DFS) service lets an attacker who already holds low-privilege authorized access and can reach DFS over the network crash or destabilize the service, producing a denial-of-service condition on the affected host. Windows 10 (1607, 1809, 21H2, 22H2), Windows 11 (23H2 through 26H1) and Windows Server 2012 through 2025 are in scope, and the attack surface only exists where DFS is enabled or in use. Exploitation is limited by the high attack complexity of the underlying memory-reuse race, no public exploit code has been identified at time of analysis, and EPSS is low at 0.61% (47th percentile), so this is a moderate-priority patch rather than an emergency. Vendor-released patches are available through Microsoft's update guide.
Local privilege escalation in Windows Management Instrumentation (WMI) via a use-after-free memory corruption flaw enables any low-privileged local account holder to gain full system compromise (C:H/I:H/A:H) across a sweeping range of Windows client and server versions from Server 2012 through Windows 11 26H1. The CVSS AC:H rating reflects the heap-grooming and race-condition complexity inherent in reliable UAF exploitation. No public exploit has been identified at time of analysis, and Microsoft has released patches across all affected product lines through the MSRC advisory process.
Heap-based buffer overflow in the Windows Volume Manager Extension Driver (volmgrx-class kernel component) allows a local, low-privilege authenticated attacker to escalate privileges to SYSTEM. The vulnerability affects a sweeping range of Windows client and server releases - from Windows Server 2012 through Windows 11 26H1 and Windows Server 2025 - making it broadly applicable across enterprise environments. No public exploit has been identified at time of analysis, and Microsoft has released patches for all affected versions.
Denial of service in the Windows Remote Desktop Client (mstsc) lets a malicious or compromised RDP server crash the client that connects to it by returning crafted data that triggers an integer overflow or wraparound (CWE-190). All supported Windows 10 (1607 through 22H2), Windows 11 (23H2 through 26H1) and Windows Server 2016 through 2025 installations, including Server Core, at builds below their patched revisions are affected in default configurations. Because the flaw is client-side, the attacker cannot reach victims unsolicited - the victim must be induced to open an outbound RDP session to an attacker-controlled endpoint; exploitation has not been observed (CISA SSVC: exploitation none, automatable no) and no public exploit code has been identified at time of analysis, with EPSS at 0.66% (49th percentile), so the risk is genuine but moderate and availability-only, with no code execution or data exposure.
Local privilege escalation in Windows Installer (msiexec) affects every major Windows release from Server 2012 through Windows 11 26H1 and Server 2025, allowing a low-privileged authenticated attacker to achieve full SYSTEM-level control by winning a race condition against the installer's SYSTEM-context file operations. The vulnerability (CWE-362) requires high attack complexity due to the inherent timing constraints of race window exploitation, but no user interaction is needed once local code execution is established. Microsoft has released patches for all affected versions; no public exploit code or CISA KEV listing has been identified at time of analysis.
Remote code execution via a double-free memory corruption flaw (CWE-415) in Microsoft Office Word enables an unauthenticated network-reachable attacker to execute arbitrary code on a victim's machine when the victim opens or previews a specially crafted document (UI:R). The CVSS 3.1 score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) reflects full host compromise upon successful exploitation. No public exploit code has been identified at time of analysis, and a vendor-released patch is available through Microsoft's Security Response Center.
Local privilege escalation in Windows NTFS via an out-of-bounds read (CWE-125) enables a low-privileged local attacker to gain full system-level access across a broad range of Windows desktop and server releases. The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms exploitation requires only a standard local user account with no user interaction and no special configuration. EPSS sits at 0.27% (19th percentile), suggesting limited opportunistic exploitation at this time, and no active exploitation is confirmed via CISA KEV.
Local privilege escalation in the Windows Device Association Service allows a low-privileged authenticated local user to gain SYSTEM-level control across a broad range of Windows 10, Windows 11, and Windows Server releases. The root cause is CWE-763 (Release of Invalid Pointer or Reference) - a memory-safety defect in the service's pointer lifecycle management that, when triggered, enables code execution at elevated privilege. No public exploit code or active exploitation has been identified at time of analysis, but the zero-interaction, low-complexity CVSS vector makes this a high-priority patching target for any organization running unpatched Windows endpoints or servers.
Heap-based buffer overflow in Windows Imaging Component (WIC) enables network-delivered code execution on any Windows system where a user opens a crafted image file. The flaw affects an extremely broad surface spanning Windows Server 2012 through Windows Server 2025 and Windows 11 26H1, making it relevant to virtually every Windows-based enterprise environment. Microsoft has released patches; no public exploit or CISA KEV listing was identified at time of analysis, though the low-complexity, no-privileges-required vector is conducive to phishing-style mass targeting.
Remote code execution in the Microsoft Graphics Component (GDI/graphics stack) affects the full supported Windows line - Windows 10 (1607-22H2), Windows 11 (23H2-26H1), and Windows Server 2012 through 2025 - where a double free (CWE-415) lets a remote attacker corrupt memory and run arbitrary code. Microsoft rates it CVSS 9.8 with a fully unauthenticated network vector and full confidentiality, integrity, and availability impact. No public exploit is identified at time of analysis and it is not listed in CISA KEV, but the ubiquity of the affected component and Patch-Tuesday-class severity make it a high-priority fix.
Local privilege escalation in Windows Biometric Service (WbioSrvc) allows any low-privileged authenticated user to gain SYSTEM-level access via a null pointer dereference (CWE-476) in the Windows Biometric Framework. Affecting Windows 10 through Windows 11 26H1 and Windows Server 2016 through 2025, the flaw is present across virtually the entire modern Windows ecosystem. No public exploit identified at time of analysis; Microsoft has released patches across all affected branches.
Local privilege escalation via heap-based buffer overflow in the Windows Biometric Service (WinBio) affects a broad range of Windows 10, Windows 11, and Windows Server releases from 2016 through 2025. An authorized low-privileged local user can exploit the memory corruption flaw to achieve full SYSTEM-level code execution with high confidentiality, integrity, and availability impact. No public exploit code has been identified at time of analysis, but the broad platform footprint and straightforward CVSS vector (AC:L, PR:L, UI:N) make this a high-priority patching target for enterprise Windows environments.
Heap-based buffer overflow in the Windows Services for NFS ONCRPC XDR Driver enables a locally authenticated attacker with standard user privileges to escalate to SYSTEM on a wide range of Windows and Windows Server releases. The affected component handles ONC RPC data serialization for NFS operations; triggering the overflow requires only an existing local session and no user interaction. Microsoft has released build-specific patches covering Windows 10 through Windows 11 and Windows Server 2012 through Server 2025; no public exploit code or CISA KEV listing has been identified at time of analysis.
Remote code execution is possible in Windows Imaging Component (WIC) across a broad range of Microsoft Windows desktop and server releases via a heap-based buffer overflow triggered when a user opens or previews a specially crafted image file. The flaw is reachable over the network with no privileges required, making phishing or drive-by delivery viable attack vectors. No public exploit code or active exploitation (CISA KEV) has been identified at time of analysis; a vendor-released patch is available via Windows Update.
Local privilege escalation in Windows Modern Device Management (MDM) allows an authenticated low-privilege attacker to achieve full SYSTEM-level access via a use-after-free (CWE-416) memory corruption condition. The flaw spans an exceptionally broad surface - from Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025 - making it relevant to virtually every supported enterprise Windows deployment using MDM enrollment. Vendor patches are available via the MSRC advisory; no public exploit code or active exploitation has been identified at time of analysis.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) allows a locally authenticated low-privileged attacker to escalate privileges to SYSTEM on affected Windows 10, Windows 11, and Windows Server 2016 through 2025 installations. The vulnerability is exploitable with no user interaction beyond local code execution rights, and affects virtually the entire supported Windows ecosystem - from Windows 10 version 1607 through Windows 11 26H1 and all major Server SKUs. No public exploit code or CISA KEV listing has been identified at time of analysis, but a vendor-released patch is available.
Heap-based buffer overflow in Windows Biometric Service (WbioSrvc) enables an authenticated local attacker with standard user privileges to escalate to SYSTEM-level access across a wide range of Windows releases spanning Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025. Microsoft has released patches for all fifteen affected product/version combinations via the standard Windows Update channel. No public exploit code has been identified and this CVE does not appear in the CISA KEV catalog, though the CVSS AC:L rating indicates reliable exploitation without race conditions, making this a credible post-compromise privilege escalation primitive.
Heap-based buffer overflow in the Windows Graphic Fonts font-processing component enables remote code execution across virtually the entire Windows ecosystem, from Server 2012 to Windows 11 26H1 and Server 2025. The attack vector is network-based with user interaction required (CVSS AV:N/UI:R), consistent with a font delivered via a malicious document or webpage that triggers the vulnerable parser. Microsoft has released patches across all affected platform versions; no public exploit code or active exploitation via CISA KEV has been identified at the time of analysis.
Heap-based buffer overflow in the Windows Graphics Kernel subsystem allows a locally authenticated, high-privileged attacker to execute arbitrary code with scope change to kernel context. The vulnerability affects a wide swath of Windows 10, Windows 11, and Windows Server releases from build 1809 through Server 2025. No public exploit or CISA KEV listing has been identified at time of analysis; a vendor-released patch is available through the Microsoft Security Response Center.
Heap-based buffer overflow in the Microsoft Graphics Component enables remote code execution across a broad range of Windows client and server editions from Windows 10 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025. An unauthenticated network-based attacker can exploit this flaw by inducing a user to interact with maliciously crafted graphical content, triggering a CWE-122 heap overflow that yields full C:H/I:H/A:H impact. No public exploit code or CISA KEV listing is identified at time of analysis; vendor patch is available via Microsoft's August 2026 Patch Tuesday.
Local privilege escalation via heap-based buffer overflow in Windows Biometric Service (WbioSrvc) affects authorized standard users across a sweeping range of Windows 10, Windows 11, and Windows Server versions from 2016 through 2025. A low-privileged local attacker can trigger the CWE-122 heap overflow to achieve full SYSTEM-level control (C:H/I:H/A:H) without user interaction. No public exploit code or active exploitation has been identified at time of analysis, though the ubiquity of the affected platform and the low attack complexity make this a meaningful post-access privilege escalation primitive.
Local privilege escalation in the Windows Data Sharing Service Client (DsSvc) enables a low-privileged authenticated local user to gain SYSTEM-level access across a sweeping range of Windows 10, Windows 11, and Windows Server releases. The root cause is CWE-862 (Missing Authorization): the service client fails to enforce authorization checks on operations that should be restricted to higher-privilege callers, allowing a standard user account to invoke privileged service operations without additional conditions. Vendor-released patches are available via Microsoft's update guide; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Windows Imaging Component (WIC) enables remote unauthenticated attackers to execute arbitrary code on affected Windows systems when a user opens or previews a specially crafted image file. Affected platforms span Windows 10/11 desktop editions and Windows Server 2012 through 2025, covering a core OS image-processing library consumed by Explorer, Office, and countless third-party applications. No public exploit identified at time of analysis, but the unauthenticated network-reachable vector with a low-friction user-interaction trigger makes this a high patch-priority item given the enormous install base.
Heap-based buffer overflow in Windows Management Services enables a network-reachable, low-privileged authenticated attacker to escalate privileges with high impact across confidentiality, integrity, and availability on affected Windows systems. The vulnerability spans a broad range of Windows releases from Windows Server 2012 through Windows Server 2025 and Windows 10 through Windows 11 26H1, making the remediation surface unusually wide. No public exploit code has been identified at time of analysis, but the low attack complexity and network reachability make this a high-priority patch-cycle item.
Privilege escalation in the Windows Biometric Service (wbiosrvc) allows a locally authenticated low-privileged user to gain SYSTEM-level access via a heap-based buffer overflow. Affecting 15 distinct Windows client and server builds spanning Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025, the flaw requires only a standard user account and no interaction from any other user. Microsoft has released patched builds across all affected product lines; no public exploit code or CISA KEV listing has been identified at time of analysis.
Remote code execution in the Windows Secure Socket Tunneling Protocol (SSTP) service lets an unauthenticated network attacker run arbitrary code on affected hosts by triggering a use-after-free condition. The flaw spans nearly the entire supported Windows family (Windows 10/11 through 26H1 and Windows Server 2012 through 2025), carries a CVSS 9.8, and was reported by Microsoft's own security team with a patch now available. No public exploit is identified at time of analysis; exposure in practice is gated on hosts actually running an SSTP VPN listener.
Heap-based buffer overflow in the Windows Biometric Service (WBioSrvc) allows a locally authenticated standard user to escalate privileges to SYSTEM on a broad range of affected Windows desktop and server editions. The flaw (CWE-122) requires only low-privilege local access with no user interaction, making it an attractive post-compromise escalation primitive. Microsoft has released patches across all affected branches; no public exploit or CISA KEV listing has been identified at time of analysis.
Stack-based buffer overflow in the Windows Graphics Component enables unauthenticated remote attackers to achieve arbitrary code execution on affected systems when a victim interacts with specially crafted graphical content. The vulnerability spans all currently supported Windows 10, Windows 11, and Windows Server editions from 2016 through 2025, making the attack surface exceptionally broad. Microsoft has released patches as part of the monthly security update cycle; no confirmed active exploitation or public proof-of-concept has been identified at time of analysis.
Local privilege escalation in Windows Authentication Methods affects all supported Windows 10, Windows 11, and Windows Server releases through a use-after-free condition triggered via a race condition (CWE-362). An attacker with low-privileged local access can win a timing window in the authentication subsystem, corrupt freed memory, and elevate to full SYSTEM-level privileges with complete confidentiality, integrity, and availability impact. No public exploit or CISA KEV listing has been identified at time of analysis, but the breadth of affected versions - spanning every major Windows release from Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025 - makes this a high-priority patch for any Windows fleet.
Privilege escalation in Windows Modern Device Management (MDM) allows a locally authenticated attacker with low privileges to gain full system-level access via a use-after-free memory corruption condition. The vulnerability affects a broad surface of Windows 10, Windows 11, and Windows Server 2019-2025 builds. Microsoft has released patches across all affected product lines; no public exploit or active exploitation (KEV) has been identified at time of analysis.
Local privilege escalation in Windows Biometric Service (WBioSrvc) allows a low-privileged authenticated user to gain full system control via an integer overflow or wraparound (CWE-190). Affected versions span Windows 10, Windows 11, and Windows Server 2016 through 2025, with Microsoft providing patched builds across all affected product lines. No public exploit code or CISA KEV listing was identified at time of analysis, but the low attack complexity and absence of user-interaction requirement make this a high-value post-compromise escalation primitive.
Heap-based buffer overflow in the Windows Biometric Service (WBF) enables a locally authenticated attacker to escalate privileges to SYSTEM on a wide range of Windows desktop and server versions. The flaw (CWE-122) is reachable by any standard user account and requires no user interaction, yielding full confidentiality, integrity, and availability compromise on the vulnerable host. Patch is available via Microsoft's Patch Tuesday update cycle; SSVC assessment indicates no exploitation observed and the attack is not automatable.
Heap-based buffer overflow in the Windows Biometric Service (WbioSrvc) enables any locally authenticated standard user to escalate privileges to SYSTEM across virtually all supported Windows 10, Windows 11, and Windows Server editions. The flaw (CWE-122) exploits the service's privileged execution context combined with its exposure to requests from low-privileged user sessions, yielding full confidentiality, integrity, and availability compromise of the host. Microsoft has released patched builds across all affected platforms; no active exploitation is confirmed in CISA KEV and no public exploit code has been identified at time of analysis.
Local privilege escalation in Windows Biometric Service (WinBio) allows an authenticated low-privileged user to gain full system control via a heap-based buffer overflow. The flaw spans a broad surface - Windows 10 versions 1607 through 22H2, Windows 11 versions 23H2 through 26H1, and Windows Server 2016 through 2025 - all pre-patched builds are affected. Microsoft has released security updates addressing the overflow; no public exploit code or active exploitation (CISA KEV) has been identified at time of analysis.
Heap-based buffer overflow in the Windows Biometric Service enables local privilege escalation to SYSTEM-level access across a wide range of Windows client and server releases. Any low-privileged, authorized local user can trigger the overflow without user interaction, yielding full confidentiality, integrity, and availability compromise of the affected host. Vendor patch is available from Microsoft; no public exploit has been identified at time of analysis.
Heap-based buffer overflow in Windows Biometric Service (WbioSrvc) enables local privilege escalation across a wide range of Windows client and server editions from 2016 through current 2025 builds. An authenticated local attacker exploiting CWE-122 can corrupt heap memory to achieve full system-level compromise (C:H/I:H/A:H), making this a practical post-exploitation stepping stone after initial access. Microsoft has released patches for all affected versions; SSVC rates exploitation as none at time of analysis and no public exploit code has been identified.
Privilege escalation to SYSTEM-level in Windows Biometric Service (WinBioSrvc) affects virtually all supported Windows releases, from Windows 10 version 1607 through Windows 11 26H1 and Windows Server 2016 through 2025. An authorized local attacker with low-privilege code execution can exploit a heap-based buffer overflow in the biometric service process to achieve full local compromise - gaining high confidentiality, integrity, and availability impact. No public exploit has been identified at time of analysis, and Microsoft has released patches across all 15 affected build branches as confirmed by EUVD-2026-73750.
Heap-based buffer overflow in Windows Biometric Service (WbioSrvc) enables an authenticated local attacker with standard user privileges to escalate to SYSTEM-level access on affected Windows endpoints and servers. The vulnerability spans a broad surface - Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025 - making it relevant across virtually all enterprise Windows deployments. No public exploit code or CISA KEV listing has been identified at time of analysis, but low attack complexity (AC:L) and the wide affected version range make this a meaningful patching priority.
Privilege escalation via heap-based buffer overflow in the Windows Biometric Service (wbiosrvc) affects the full current Windows ecosystem, from Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025. An authenticated local user can trigger the overflow to achieve full SYSTEM-level code execution, with complete confidentiality, integrity, and availability impact on the local machine. No public exploit code has been identified at time of analysis, and Microsoft has released patches across all affected build branches via the standard update guide.
Heap-based buffer overflow in the Windows Biometric Service (WinBioSrv) enables a locally authenticated standard user to escalate privileges to SYSTEM on affected Windows endpoints and servers. The vulnerability spans virtually every currently supported Windows release - from Windows 10 1607 and Server 2016 through Windows 11 26H1 and Server 2025 - making organizational exposure exceptionally broad. Microsoft has released patched builds via the standard Patch Tuesday cycle; no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in Windows Biometric Service (wbiosrvc.exe) enables a low-privileged local attacker to escalate to SYSTEM-level privileges across all major Windows 10, Windows 11, and Windows Server 2016 through 2025 releases. The flaw (CWE-122) can be triggered with low complexity and no user interaction, yielding full confidentiality, integrity, and availability impact over the affected host. No public exploit has been identified at time of analysis; Microsoft has released patches covering all affected build lines.
Heap-based buffer overflow in Windows Biometric Service (WinBio) enables a locally authenticated low-privileged user to escalate privileges to SYSTEM on affected Windows hosts. The flaw spans a wide range of Windows versions from Windows 10 1607 and Server 2016 through Windows 11 26H1 and Server 2025, representing effectively the entire current Microsoft ecosystem. Vendor-released patches are available; no public exploit code or active exploitation has been identified at time of analysis.
Heap-based buffer overflow in Windows' Graphic Fonts component (CWE-122) enables unauthenticated remote attackers to achieve arbitrary code execution on a wide range of Windows client and server editions by inducing a user to open or preview maliciously crafted font data. Affecting 19 distinct Windows product lines from Server 2012 through Windows 11 26H1, the vulnerability carries a CVSS 3.1 score of 8.8 with full C:H/I:H/A:H impact. A vendor-released patch is available via Microsoft's Update Guide; no public exploit code or CISA KEV listing has been identified at time of analysis.
Remote code execution in the Windows Internet Connection Sharing (ICS) service stems from a use-after-free (CWE-416) that a network attacker can trigger without authentication or user interaction. Every supported Windows client and server branch is affected, from Windows Server 2012 through Windows 11 25H2 and Server 2025. There is no public exploit identified at time of analysis and CISA SSVC records exploitation status as none, but the flaw is rated total technical impact and automatable, and Microsoft has shipped patches.
Remote code execution in the Windows Netlogon service affects a broad range of Windows client and server releases (Windows 10, Windows 11 through 26H1, and Windows Server 2012 through 2025), where a stack-based buffer overflow lets an unauthenticated network attacker run arbitrary code. Because Netlogon underpins the secure channel between domain members and domain controllers, exploitation against a DC can lead to full domain compromise. Microsoft has released patches; there is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV.
Remote code execution in Windows IP Helper (iphlpapi) affects every supported Windows client and server release from Windows Server 2012 through Windows 11 26H2. An unauthenticated network attacker who can trigger the use-after-free condition in the IP Helper service may gain full code execution on the target system - confidentiality, integrity, and availability all rated High. Patch Tuesday security updates remediate the flaw across all affected build lines; no public exploit or CISA KEV listing has been identified at time of analysis.
Heap-based buffer overflow in the Windows Network Connection Broker service enables a locally authenticated, low-privileged attacker to escalate privileges to SYSTEM on affected Windows endpoints and servers. The vulnerability spans an exceptionally wide range of Microsoft platforms - from Windows Server 2012 through Windows Server 2025 and Windows 10/11 across multiple feature updates - making it a broad-surface local privilege escalation risk. No public exploit or CISA KEV listing has been identified at time of analysis, but Microsoft has released patches via the standard Patch Tuesday update cycle.
Local privilege escalation via use-after-free in the Windows WebClient (WebDAV client) Service affects virtually every supported Windows desktop and server release, from Server 2012 through Windows 11 and Server 2025. An authenticated local attacker with standard user privileges can exploit the memory-safety flaw to achieve full SYSTEM-level control, gaining complete confidentiality, integrity, and availability over the host. No public exploit has been identified at time of analysis, and Microsoft has released patched builds for all affected versions via its standard Patch Tuesday update mechanism.
Local privilege escalation in the Windows Modern Execution Server component allows an authenticated low-privileged attacker to gain full system control via a use-after-free memory corruption flaw. The vulnerability affects a broad range of Windows 10, Windows 11, and Windows Server releases from build 10.0.14393 through 10.0.28000. Microsoft has released patched builds addressing the flaw; no public exploit or CISA KEV listing is identified at time of analysis, though the CVSS AC:H rating suggests exploitation requires precise timing or specific memory state conditions.
Heap-based buffer overflow in the Windows USB Video Driver (CWE-122) allows a locally authenticated, high-privileged attacker to escalate privileges with scope change, achieving full confidentiality, integrity, and availability impact across the broader system. Twelve Windows editions are confirmed affected, from Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025. Vendor-released patches are available via Microsoft's update guide; no public exploit or CISA KEV listing is identified at time of analysis.
Heap-based buffer overflow in Windows Hyper-V allows a locally authenticated attacker with high privileges to escalate privileges and escape the guest VM boundary, achieving scope change to the underlying host. Affected across a broad range of Windows 10, 11, and Windows Server releases from 2016 through 2025. Vendor-released patches are available; no public exploit or CISA KEV listing identified at time of analysis.
Heap-based buffer overflow in Windows Media Player enables network-delivered remote code execution across 15 Windows OS SKUs, from Windows 10 1607 through Windows 11 25H2 and Windows Server 2016 through 2025. An unauthenticated remote attacker who can entice a user to open a crafted media file triggers memory corruption yielding full code execution at the victim's privilege level (C:H/I:H/A:H). No active exploitation is confirmed in CISA KEV and no public exploit code has been identified at time of analysis, though the ubiquitous Windows footprint and well-understood heap-overflow exploit class warrant priority patching.
Remote code execution in Windows Routing and Remote Access Service (RRAS) allows a low-privileged network attacker to fully compromise affected Windows systems via a heap-based buffer overflow in the RRAS service. The vulnerability spans an unusually wide range of releases - Windows Server 2012 through Server 2025 and Windows 10/11 - suggesting a systemic flaw in a shared RRAS code path. Microsoft has released patches through its Security Update Guide (MSRC); no public exploit code or CISA KEV listing has been identified at time of analysis.
Privilege escalation via heap-based buffer overflow in the Windows USB driver stack allows a low-privileged local attacker to gain SYSTEM-level access on affected Windows 10, Windows 11, and Windows Server versions. The vulnerability (CWE-122) resides in kernel-mode USB driver handling, where malformed or malicious USB-related input can corrupt heap memory and redirect execution. No public exploit code has been identified at time of analysis, and the flaw is not listed in CISA KEV; however, the low attack complexity and broad Windows footprint make this a meaningful post-exploitation and insider-threat vector.
Local privilege escalation in Windows Spaceport.sys, the Storage Spaces kernel driver, allows a low-privileged local user to execute arbitrary code at the kernel level across a broad range of Windows 10, 11, and Server editions. The CWE-125 out-of-bounds read in this kernel driver can be leveraged - under high-complexity conditions such as heap grooming - to corrupt adjacent kernel memory structures and redirect execution, yielding SYSTEM-level privileges. Microsoft has released patches for all affected builds, and no public exploit code or confirmed active exploitation has been identified at time of analysis.