Windows 11 26h1
Monthly
Use-after-free (CWE-416) in the Windows Kernel enables a low-privileged local attacker to escalate privileges to SYSTEM on a broad range of Windows client and server releases. The CVSS vector (AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H) indicates full confidentiality, integrity, and availability compromise once triggered, though the high attack complexity (AC:H) implies a race-condition or specific timing requirement that raises the bar for reliable exploitation. Microsoft has released patches for all affected versions; no public exploit or CISA KEV listing has been identified at time of analysis.
Out-of-bounds read in the Windows Key Distribution Center (KDC) allows unauthenticated network attackers to crash the Kerberos authentication service by sending a specially crafted packet to port 88, resulting in a denial of service condition. The vulnerability spans the entire supported Windows Server portfolio from Server 2012 through Server 2025, as well as Windows 10 and 11 client builds, confirmed by EUVD-2026-73363. No public exploit code has been identified at time of analysis; however, the unauthenticated, low-complexity network attack surface makes this a high-priority patch for organizations running Active Directory, where KDC availability is a single point of failure for domain-wide Kerberos authentication.
Local privilege escalation in the Windows Resilient File System (ReFS) Deduplication Service allows a low-privileged authenticated attacker to gain full system control via improper symlink/junction resolution (CWE-59). Affected platforms include Windows Server 2025 and Windows 11 versions 24H2, 25H2, and 26H1. Exploitation requires local access and a race condition (AC:H), making this a targeted rather than opportunistic threat; no public exploit or CISA KEV listing exists at time of analysis.
Remote code execution in Windows Message Queuing (MSMQ) allows unauthenticated network attackers to execute arbitrary code via a use-after-free memory corruption condition. The vulnerability spans Windows 10, Windows 11, and Windows Server 2022/2025 across multiple feature-release versions. No public exploit code or active KEV-listed exploitation has been identified at time of analysis, but the full C:H/I:H/A:H CVSS impact and the network-accessible MSMQ attack surface make this a high priority for any enterprise with MSMQ enabled.
Heap-based buffer overflow in Windows Error Reporting (WER) allows a low-privileged local attacker to escalate privileges to SYSTEM on affected Windows endpoints and servers. The CVSS scope change flag (S:C) indicates the exploit escapes the attacker's process boundary, achieving full C:H/I:H/A:H impact on the broader system. Patch is available from Microsoft as part of a Patch Tuesday update cycle; no public exploit or CISA KEV entry has been identified at time of analysis.
Local privilege escalation in Windows NTFS (ntfs.sys) allows a low-privileged local attacker to achieve SYSTEM-level code execution via a heap-based buffer overflow (CWE-122). The vulnerability spans virtually every supported Windows release - from Windows Server 2012 R2 through Windows 11 26H1 and Windows Server 2025 - making the affected surface exceptionally broad. No public exploit code has been identified at time of analysis, but LPE primitives in the kernel NTFS driver are a high-value post-exploitation capability routinely sought by ransomware operators and APT groups following initial access.
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.
Stack-based buffer overflow in the Microsoft Graphics Component enables a locally authenticated attacker to escalate privileges to SYSTEM level on affected Windows 11 and Windows Server releases. The CWE-121 flaw allows crafted input to overflow a fixed-size stack buffer in a privileged graphics subsystem component, corrupting control flow and achieving full C:H/I:H/A:H impact. Microsoft has released patches; no public exploit or active exploitation 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 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.
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 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.
Heap-based buffer overflow in Windows Resilient File System (ReFS) allows a locally authenticated low-privilege attacker to escalate to SYSTEM-level privileges on affected Windows 11 and Windows Server 2025 builds. The CWE-122 flaw resides in the ReFS kernel driver and requires no user interaction, making it a reliable local privilege escalation primitive when combined with any initial-access vector. Microsoft has released patches via MSRC; no public exploit code or active CISA KEV listing has been identified at time of analysis.
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.
Privilege escalation in Windows 11 Secure Kernel Mode (Virtualization-Based Security / VTL1) allows a locally authorized attacker with high privileges to cross the VBS isolation boundary and achieve full C:H/I:H/A:H impact on the Secure Kernel context. The root cause is CWE-822 (Untrusted Pointer Dereference): attacker-controlled pointer values are dereferenced without validation inside Secure Kernel Mode, enabling code execution at the VTL1 trust level. No public exploit code or CISA KEV listing has been identified at time of analysis; a vendor patch is available for Windows 11 26H1.
Local privilege escalation in Windows Virtualization-Based Security (VBS) Enclave exposes authenticated local attackers to full system compromise via an untrusted pointer dereference (CWE-822). Affected platforms include Windows 11 versions 23H2 through 26H1 and Windows Server 2025 in both standard and Server Core configurations, with Microsoft confirming a patch is available. No public exploit code or active exploitation has been identified at time of analysis, but the low attack complexity (AC:L) makes post-access escalation straightforward for any attacker holding a standard local session.
Symlink following (CWE-59) in the Windows Update Stack enables a locally authenticated attacker with standard user privileges to elevate to SYSTEM on multiple Windows 11 and Windows Server 2025 builds. The vulnerability is confirmed actively exploited per CISA KEV, with full confidentiality, integrity, and availability impact following privilege escalation. Vendor-released patches are available for all identified affected builds and should be treated as an urgent patching priority.
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.
Guest-to-host code execution in Windows Hyper-V affects authorized guest VM users who can trigger an untrusted pointer dereference (CWE-822) to execute code in the hypervisor context, effectively escaping the VM sandbox. The CVSS scope-change metric (S:C) confirms this is a privilege escalation from guest to host, making it a hypervisor escape with full High C/I/A impact on the underlying host. Affected platforms span Windows Server 2022 and 2025 and multiple Windows 11 release channels (23H2 through 25H2). No public exploit or CISA KEV listing identified at time of analysis; vendor patch is available.
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.
Local privilege escalation in the Windows 11 MIDI Service Module exploits a time-of-check time-of-use (TOCTOU) race condition, allowing an authenticated low-privilege local attacker to gain SYSTEM-level control of an affected endpoint. All three currently supported Windows 11 feature versions - 24H2, 25H2, and 26H1 - are affected prior to their respective cumulative update thresholds. No public exploit code has been identified at time of analysis, and the vulnerability does not appear in the CISA KEV catalog.
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.
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.
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 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 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 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.
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.
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.
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 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.
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 the Windows DHCP Server service allows an authenticated attacker with adjacent network access to achieve remote code execution on the target system. The vulnerability (CWE-122) exists across a wide range of Windows Server and Windows client versions, from Server 2012 through Server 2025 and Windows 10/11 builds, all fixed in the July 2026 Patch Tuesday update cycle. No public exploit or CISA KEV listing is present at time of analysis, but the CVSS 8.0 score and full C/I/A:H impact make this a high-priority patching target for any organization running Windows DHCP Server infrastructure.
Heap-based buffer overflow in the Windows DHCP Client enables an authenticated attacker on the same network segment to escalate privileges on Windows 11 systems. The vulnerability (CWE-122) affects Windows 11 versions 24H2, 25H2, and 26H1 prior to their respective patched builds, with full confidentiality, integrity, and availability impact upon successful exploitation. No public exploit code and no active exploitation have been identified at the time of analysis; Microsoft has released a patch via the June/July 2026 Patch Tuesday cycle.
Heap-based buffer overflow in the Windows Biometric Service (WBS) enables local privilege escalation across a wide swath of Microsoft Windows desktop and server releases. An authorized attacker holding only standard user privileges can trigger memory corruption in the biometric authentication subsystem, likely achieving SYSTEM-level code execution. The vulnerability spans Windows 10 through Windows 11 26H1 and Windows Server 2016 through Server 2025, representing virtually the entire active Windows ecosystem; a vendor-released patch is available with no public exploit identified at time of analysis.
Stack-based buffer overflow in the Microsoft Graphics Component enables a locally authenticated attacker with standard user privileges to escalate to full system control across Windows 10 and Windows 11. The flaw (CWE-121) is triggered locally with low complexity and no user interaction, yielding high confidentiality, integrity, and availability impact per the CVSS:3.1 vector. No public exploit code or CISA KEV listing is identified at time of analysis, but the low-privilege requirement and zero interaction needed make this a realistic post-compromise escalation primitive.
Heap-based buffer overflow in Windows Biometric Service (WinBioSvc) enables an authenticated local attacker to escalate privileges on a broad range of Windows client and server releases. The flaw (CWE-122) requires only a low-privileged local session and no user interaction, making it a reliable second-stage payload in multi-step attack chains. Microsoft has released patches across all affected build lines; no public exploit code or CISA KEV listing has been identified at time of analysis.
Local privilege escalation in the Windows Biometric Service (WbioSrvc) allows a low-privileged authenticated local user to gain full SYSTEM-level control via a CWE-190 integer overflow that leads to memory corruption. The vulnerability spans a broad swath of Windows desktop and server releases - from Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025 - making the exposure surface very wide. No public exploit code or CISA KEV listing has been identified at time of analysis; the issue was reported through Microsoft's MSRC channel and a vendor patch is available.
Privilege escalation via heap-based buffer overflow in Windows Installer (msiexec) allows a low-privileged local user to gain full system control. Affected product is Microsoft Windows across versions that ship with the vulnerable Windows Installer component; exact version scope is defined by the MSRC advisory. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in CISA's KEV catalog, though its low-complexity, no-user-interaction profile makes it a realistic post-foothold escalation tool.
Stack-based buffer overflow in the Windows Installer component (msiexec) enables local privilege escalation to SYSTEM on affected Windows systems. An attacker holding any standard local user account can trigger the overflow with low complexity and no user interaction required, achieving full compromise of confidentiality, integrity, and availability. No public exploit has been identified at time of analysis, and this vulnerability does not appear in the CISA KEV catalog based on available data.
Privilege escalation in Windows Installer exposes all supported Windows systems to SYSTEM-level compromise by any low-privileged local user. The heap-based buffer overflow (CWE-122) in the Installer service requires only an authenticated local session - no user interaction, no elevated credentials, and low attack complexity per CVSS:3.1/AV:L/AC:L/PR:L/UI:N. No public exploit code or active exploitation via CISA KEV has been identified at time of analysis, but the ubiquity of Windows Installer and the straightforward exploitation conditions make this a meaningful post-compromise escalation primitive.
Local privilege escalation in Windows Installer (msiexec) stems from a stack-based buffer overflow (CWE-121) exploitable by any authenticated local user. An attacker with low-privilege access on an affected Windows system can trigger the overflow to gain full SYSTEM-level control, achieving complete confidentiality, integrity, and availability compromise of the local host. No public exploit code or CISA KEV listing has been identified at time of analysis, though the low attack complexity and broad Windows deployment footprint make this a meaningful priority for patch management.
Privilege escalation via heap-based buffer overflow in the Windows DNS component affects Windows 10, Windows 11, and Windows Server editions spanning Server 2012 through Server 2025. An authorized local attacker holding low-privilege credentials can trigger the overflow to achieve full system compromise (C:H/I:H/A:H). No public exploit code or active exploitation has been identified at time of analysis; a vendor-released patch is available through the Microsoft Security Response Center advisory.
Local privilege escalation in the Windows Ancillary Function Driver for WinSock (afd.sys) allows a low-privileged local attacker to gain full system control through a use-after-free memory corruption condition. The CVSS vector (AV:L/AC:H/PR:L) confirms the attack is constrained to local access with high complexity, meaning exploitation is non-trivial and likely requires precise timing or race condition triggering. No public exploit code and no CISA KEV listing have been identified at time of analysis, though the tags indicate Denial of Service is also a potential impact alongside privilege escalation.
Heap-based buffer overflow in the Windows DNS component enables a locally authenticated low-privileged attacker to escalate privileges to SYSTEM across a broad range of Windows releases, from Windows 10 version 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025. The CVSS 3.1 score of 7.8 reflects low attack complexity and full confidentiality, integrity, and availability impact once local access is obtained, with no user interaction required. No public exploit code or active exploitation has been identified at time of analysis, and a vendor-released patch is available via the Microsoft Security Response Center.
Privilege escalation in the Windows Ancillary Function Driver for WinSock (afd.sys) allows a locally authenticated attacker to gain SYSTEM-level privileges through a use-after-free memory corruption flaw. Affected systems include Windows installations where the WinSock subsystem is active, which covers virtually all Windows deployments. No public exploit code or active exploitation has been identified at time of analysis, though the high-complexity exploitation bar somewhat limits immediate opportunistic risk.
Local privilege escalation in the Windows Cross Device Service (CVE-2026-66804) allows a low-privileged authenticated user to gain SYSTEM or elevated permissions on the local machine. The flaw stems from CWE-284 (Improper Access Control), meaning the service fails to adequately enforce authorization boundaries between user privilege levels. No public exploit or CISA KEV listing has been identified at time of analysis, but the low attack complexity and absence of required user interaction make this a straightforward target for post-compromise lateral movement or privilege escalation tooling.
Remote code execution is possible in Microsoft Azure Attestation and the Device Health Attestation Service due to a race condition (CWE-362) in shared resource handling. An unauthenticated network attacker who can win a precise timing window can achieve full confidentiality, integrity, and availability compromise of the affected service. No public exploit code or CISA KEV listing has been identified at time of analysis, though the high-complexity nature of the flaw provides some natural exploitation barrier.
Local privilege escalation in Windows Key Guard exposes any authenticated local user to full system compromise via a heap-based buffer overflow (CWE-122). The CVSS vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) confirms low-complexity exploitation requiring only a standard local user session - no elevated rights, no user interaction. This class of vulnerability is a staple post-initial-access technique in ransomware and APT intrusion chains. No public exploit identified at time of analysis, and no CISA KEV listing is present in the provided data.
Local privilege escalation in the Windows Storage Port Driver (storport.sys) exploits a heap-based buffer overflow to allow an authorized low-privilege user to gain SYSTEM-level control of an affected Windows host. The CVSS 7.8 vector (AV:L/AC:L/PR:L/UI:N) confirms the attack requires only an existing low-privilege local session - no additional permissions or user interaction are needed - with full confidentiality, integrity, and availability impact upon success. No public exploit has been identified at time of analysis, and no active exploitation has been confirmed in CISA KEV.
Privilege escalation in Windows DNS affects every major Windows 10, 11, and Windows Server release from 2012 through 2025, allowing a locally authenticated low-privileged attacker to achieve full system compromise through a heap-based buffer overflow triggered by integer wraparound. The CVSS base score of 7.8 reflects total C/I/A impact and low attack complexity once local access exists. No public exploit code has been identified at time of analysis, and EPSS at 0.26% (17th percentile) confirms low current exploitation probability - though SSVC rates technical impact as total, underscoring that successful exploitation yields complete system control.
Privilege escalation in Windows Message Queuing (MSMQ) allows a locally authenticated attacker to gain SYSTEM-level privileges via a heap-based buffer overflow. Affected systems are those running Windows with the Message Queuing service enabled. The CVSS score of 7.8 (High) reflects high confidentiality, integrity, and availability impact, though exploitation requires existing local access. No public exploit or CISA KEV listing has been identified at time of analysis.
Privilege escalation in Windows Desktop Window Manager (DWM) is possible via a use-after-free memory corruption flaw exploitable by a locally authenticated low-privileged attacker. Successful exploitation grants full control over confidentiality, integrity, and availability of the affected system, consistent with elevation to SYSTEM-level privileges. No public exploit code has been identified at time of analysis, and CISA KEV listing has not been confirmed.
Heap-based buffer overflow in the Windows Desktop Window Manager (dwm.exe) enables a locally authenticated low-privileged user to escalate to SYSTEM-level privileges. The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms exploitation requires only existing local access with standard user credentials and no user interaction, making this a viable second-stage privilege escalation tool post-initial-compromise. No public exploit or CISA KEV listing has been identified at time of analysis, but the low attack complexity is a meaningful risk signal for defenders.
Privilege escalation in Windows Desktop Window Manager (DWM) allows a low-privileged local attacker to exploit a heap-based buffer overflow and obtain SYSTEM-level access. The vulnerability affects all modern Windows systems where DWM is running - its default state on any graphical Windows installation - and requires no user interaction once the attacker has local code execution. No public exploit identified at time of analysis and not listed in CISA KEV, though the low attack complexity (AC:L) meaningfully reduces the skill threshold for weaponization.
Windows Autopilot on Windows 11 versions 24H2, 25H2, and 26H1 contains a double-free memory corruption flaw that allows a locally authenticated, low-privileged attacker to escalate to full system privileges. The vulnerability carries a CVSS 3.1 score of 7.0 with high attack complexity (AC:H), meaning reliable exploitation requires specific conditions or timing to be met rather than being trivially reproducible. A vendor-released patch is available via the Microsoft Security Response Center, and no public exploit has been identified at time of analysis.
Privilege escalation in Windows Autopilot on Windows 11 (versions 24H2, 25H2, and 26H1) is caused by a use-after-free memory corruption flaw (CWE-416) that allows a locally authenticated low-privileged attacker to achieve SYSTEM-level access. The CVSS 7.0 score reflects full CIA impact offset by a strictly local attack vector and high attack complexity, consistent with a race condition or heap manipulation requirement rather than a trivial trigger. No public exploit code or CISA KEV listing has been identified at time of analysis.
Privilege escalation via use-after-free in Windows Win32K (win32k.sys) affects Windows 11 versions 24H2, 25H2, and 26H1, as well as Windows Server 2025 in both full and Server Core installations. An authenticated local attacker exploiting CWE-416 memory corruption in the Win32K kernel subsystem can elevate from low-privileged user to SYSTEM-level access. No public exploit or CISA KEV listing has been identified at time of analysis; however, Microsoft has released a patch addressing all affected build ranges.
Privilege escalation in Windows Win32K via a use-after-free memory corruption flaw enables a locally authenticated standard user to gain SYSTEM-level access across a broad range of Microsoft Windows desktop and server releases. The vulnerability resides in the win32k.sys kernel-mode driver and carries a CVSS 7.8 score with low attack complexity and no user interaction required once local code execution is established. No public exploit has been identified at time of analysis and the vulnerability is not listed in CISA KEV, though vendor patch is available and Win32K LPE flaws are historically attractive as second-stage payloads in chained attack campaigns.
Local privilege escalation in Windows Installer (msiexec) enables an authenticated low-privileged user to trigger a heap-based buffer overflow, potentially achieving SYSTEM-level code execution across a broad range of Windows client and server platforms spanning over a decade of releases. Affected systems include Windows 10 through Windows 11 25H2 and Windows Server 2012 through Server 2025, making the exposure surface extensive across enterprise and consumer deployments. No public exploit identified at time of analysis and no active exploitation confirmed via CISA KEV; vendor-released patches are available through the Microsoft Security Response Center.
Privilege escalation in the Windows Kernel (CVE-2026-65773) enables a locally authenticated low-privileged attacker to gain full SYSTEM-level control over affected systems, with high impact on confidentiality, integrity, and availability. The flaw affects a wide swath of Windows releases - from Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025 - making the exposed surface exceptionally broad. No public exploit or CISA KEV listing has been identified at time of analysis, though the low attack complexity (AC:L) means a working exploit, once developed, would require minimal environmental preconditions.
Privilege escalation via use-after-free in the Windows Win32K kernel subsystem affects Windows 10, Windows 11, and Windows Server releases from 2016 through 2025. An authorized local attacker with low-level authenticated access can exploit memory corruption in Win32K's kernel pool to elevate to SYSTEM-level privileges. CVSS rates this 7.0 with high attack complexity (AC:H); no CISA KEV listing or public proof-of-concept has been identified at time of analysis.
Privilege escalation in the Windows Remote Access API via a heap-based buffer overflow (CWE-122) allows an authenticated local attacker with low privileges to gain full SYSTEM-level control over affected Windows 11 and Windows Server 2022/2025 hosts. The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms exploitation requires only a valid local account and no user interaction, making it a reliable post-compromise escalation path. No public exploit code or CISA KEV listing has been identified at time of analysis; Microsoft has released patches for all enumerated affected versions.
Privilege escalation via heap buffer overflow in the Windows Remote Access (RAS) API affects every major in-support Windows desktop and server release, from Server 2012 R2 through Windows 11 26H1 and Server 2025. An authenticated local attacker with low-privileged access can trigger a CWE-122 heap overflow to achieve full SYSTEM-level compromise with High confidentiality, integrity, and availability impact and no user interaction required. No public exploit code or active exploitation has been identified at time of analysis; Microsoft has released a patch across all affected build lines.
Privilege escalation in the Windows Backup Engine component affects a broad range of Microsoft Windows client and server releases, exploitable by a local authenticated user holding standard privileges. The vulnerability stems from a race condition (CWE-362) in how the Backup Engine manages shared resources under concurrent execution, creating a timing window that a low-privileged attacker can win to gain elevated - likely SYSTEM-level - access. No public exploit identified at time of analysis and the vulnerability is absent from the CISA KEV catalog; however, Microsoft has issued patched builds across all affected platform branches.
Privilege escalation via heap-based buffer overflow in the Windows Desktop Window Manager (DWM) Core Library affects a broad range of Windows client and server editions spanning from Windows 10 1607 through Windows 11 26H1 and multiple Windows Server releases. An authenticated local attacker can exploit the overflow to gain full system-level privileges, achieving high confidentiality, integrity, and availability impact on the compromised host. No public exploit has been identified at time of analysis, and no active exploitation has been confirmed by CISA KEV, but the vendor has released patches addressing the affected builds.
Privilege escalation in the Windows Capability Access Management Service (camsvc) allows a local authenticated attacker to gain SYSTEM-level access via a use-after-free (UAF) memory corruption flaw. The vulnerability spans a wide surface including Windows 10 (versions 1809, 21H2, 22H2), Windows 11 (versions 23H2 through 26H1), and Windows Server 2019, 2022, and 2025, covering both standard and Server Core installations. No public exploit code or active exploitation has been confirmed at time of analysis; however, the breadth of affected builds and the high CIA impact upon successful exploitation make patching a priority for organizations with multi-user or shared Windows environments.
Local code execution via heap-based buffer overflow in Windows GDI+ (Graphics Device Interface Plus) affects a wide range of Windows desktop and server editions from Windows Server 2012 through Windows 11 26H1 and Windows Server 2025. Any locally authenticated low-privilege user can trigger the overflow, gaining full control over confidentiality, integrity, and availability on the affected host. No public exploit code has been identified at time of analysis, and the vulnerability does not appear in the CISA KEV catalog, but Microsoft has released patches across all affected version branches.
Use-after-free (CWE-416) in the Windows Kernel enables a low-privileged local attacker to escalate privileges to SYSTEM on a broad range of Windows client and server releases. The CVSS vector (AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H) indicates full confidentiality, integrity, and availability compromise once triggered, though the high attack complexity (AC:H) implies a race-condition or specific timing requirement that raises the bar for reliable exploitation. Microsoft has released patches for all affected versions; no public exploit or CISA KEV listing has been identified at time of analysis.
Out-of-bounds read in the Windows Key Distribution Center (KDC) allows unauthenticated network attackers to crash the Kerberos authentication service by sending a specially crafted packet to port 88, resulting in a denial of service condition. The vulnerability spans the entire supported Windows Server portfolio from Server 2012 through Server 2025, as well as Windows 10 and 11 client builds, confirmed by EUVD-2026-73363. No public exploit code has been identified at time of analysis; however, the unauthenticated, low-complexity network attack surface makes this a high-priority patch for organizations running Active Directory, where KDC availability is a single point of failure for domain-wide Kerberos authentication.
Local privilege escalation in the Windows Resilient File System (ReFS) Deduplication Service allows a low-privileged authenticated attacker to gain full system control via improper symlink/junction resolution (CWE-59). Affected platforms include Windows Server 2025 and Windows 11 versions 24H2, 25H2, and 26H1. Exploitation requires local access and a race condition (AC:H), making this a targeted rather than opportunistic threat; no public exploit or CISA KEV listing exists at time of analysis.
Remote code execution in Windows Message Queuing (MSMQ) allows unauthenticated network attackers to execute arbitrary code via a use-after-free memory corruption condition. The vulnerability spans Windows 10, Windows 11, and Windows Server 2022/2025 across multiple feature-release versions. No public exploit code or active KEV-listed exploitation has been identified at time of analysis, but the full C:H/I:H/A:H CVSS impact and the network-accessible MSMQ attack surface make this a high priority for any enterprise with MSMQ enabled.
Heap-based buffer overflow in Windows Error Reporting (WER) allows a low-privileged local attacker to escalate privileges to SYSTEM on affected Windows endpoints and servers. The CVSS scope change flag (S:C) indicates the exploit escapes the attacker's process boundary, achieving full C:H/I:H/A:H impact on the broader system. Patch is available from Microsoft as part of a Patch Tuesday update cycle; no public exploit or CISA KEV entry has been identified at time of analysis.
Local privilege escalation in Windows NTFS (ntfs.sys) allows a low-privileged local attacker to achieve SYSTEM-level code execution via a heap-based buffer overflow (CWE-122). The vulnerability spans virtually every supported Windows release - from Windows Server 2012 R2 through Windows 11 26H1 and Windows Server 2025 - making the affected surface exceptionally broad. No public exploit code has been identified at time of analysis, but LPE primitives in the kernel NTFS driver are a high-value post-exploitation capability routinely sought by ransomware operators and APT groups following initial access.
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.
Stack-based buffer overflow in the Microsoft Graphics Component enables a locally authenticated attacker to escalate privileges to SYSTEM level on affected Windows 11 and Windows Server releases. The CWE-121 flaw allows crafted input to overflow a fixed-size stack buffer in a privileged graphics subsystem component, corrupting control flow and achieving full C:H/I:H/A:H impact. Microsoft has released patches; no public exploit or active exploitation 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 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.
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 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.
Heap-based buffer overflow in Windows Resilient File System (ReFS) allows a locally authenticated low-privilege attacker to escalate to SYSTEM-level privileges on affected Windows 11 and Windows Server 2025 builds. The CWE-122 flaw resides in the ReFS kernel driver and requires no user interaction, making it a reliable local privilege escalation primitive when combined with any initial-access vector. Microsoft has released patches via MSRC; no public exploit code or active CISA KEV listing has been identified at time of analysis.
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.
Privilege escalation in Windows 11 Secure Kernel Mode (Virtualization-Based Security / VTL1) allows a locally authorized attacker with high privileges to cross the VBS isolation boundary and achieve full C:H/I:H/A:H impact on the Secure Kernel context. The root cause is CWE-822 (Untrusted Pointer Dereference): attacker-controlled pointer values are dereferenced without validation inside Secure Kernel Mode, enabling code execution at the VTL1 trust level. No public exploit code or CISA KEV listing has been identified at time of analysis; a vendor patch is available for Windows 11 26H1.
Local privilege escalation in Windows Virtualization-Based Security (VBS) Enclave exposes authenticated local attackers to full system compromise via an untrusted pointer dereference (CWE-822). Affected platforms include Windows 11 versions 23H2 through 26H1 and Windows Server 2025 in both standard and Server Core configurations, with Microsoft confirming a patch is available. No public exploit code or active exploitation has been identified at time of analysis, but the low attack complexity (AC:L) makes post-access escalation straightforward for any attacker holding a standard local session.
Symlink following (CWE-59) in the Windows Update Stack enables a locally authenticated attacker with standard user privileges to elevate to SYSTEM on multiple Windows 11 and Windows Server 2025 builds. The vulnerability is confirmed actively exploited per CISA KEV, with full confidentiality, integrity, and availability impact following privilege escalation. Vendor-released patches are available for all identified affected builds and should be treated as an urgent patching priority.
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.
Guest-to-host code execution in Windows Hyper-V affects authorized guest VM users who can trigger an untrusted pointer dereference (CWE-822) to execute code in the hypervisor context, effectively escaping the VM sandbox. The CVSS scope-change metric (S:C) confirms this is a privilege escalation from guest to host, making it a hypervisor escape with full High C/I/A impact on the underlying host. Affected platforms span Windows Server 2022 and 2025 and multiple Windows 11 release channels (23H2 through 25H2). No public exploit or CISA KEV listing identified at time of analysis; vendor patch is available.
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.
Local privilege escalation in the Windows 11 MIDI Service Module exploits a time-of-check time-of-use (TOCTOU) race condition, allowing an authenticated low-privilege local attacker to gain SYSTEM-level control of an affected endpoint. All three currently supported Windows 11 feature versions - 24H2, 25H2, and 26H1 - are affected prior to their respective cumulative update thresholds. No public exploit code has been identified at time of analysis, and the vulnerability does not appear in the CISA KEV catalog.
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.
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.
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 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 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 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.
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.
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.
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 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.
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 the Windows DHCP Server service allows an authenticated attacker with adjacent network access to achieve remote code execution on the target system. The vulnerability (CWE-122) exists across a wide range of Windows Server and Windows client versions, from Server 2012 through Server 2025 and Windows 10/11 builds, all fixed in the July 2026 Patch Tuesday update cycle. No public exploit or CISA KEV listing is present at time of analysis, but the CVSS 8.0 score and full C/I/A:H impact make this a high-priority patching target for any organization running Windows DHCP Server infrastructure.
Heap-based buffer overflow in the Windows DHCP Client enables an authenticated attacker on the same network segment to escalate privileges on Windows 11 systems. The vulnerability (CWE-122) affects Windows 11 versions 24H2, 25H2, and 26H1 prior to their respective patched builds, with full confidentiality, integrity, and availability impact upon successful exploitation. No public exploit code and no active exploitation have been identified at the time of analysis; Microsoft has released a patch via the June/July 2026 Patch Tuesday cycle.
Heap-based buffer overflow in the Windows Biometric Service (WBS) enables local privilege escalation across a wide swath of Microsoft Windows desktop and server releases. An authorized attacker holding only standard user privileges can trigger memory corruption in the biometric authentication subsystem, likely achieving SYSTEM-level code execution. The vulnerability spans Windows 10 through Windows 11 26H1 and Windows Server 2016 through Server 2025, representing virtually the entire active Windows ecosystem; a vendor-released patch is available with no public exploit identified at time of analysis.
Stack-based buffer overflow in the Microsoft Graphics Component enables a locally authenticated attacker with standard user privileges to escalate to full system control across Windows 10 and Windows 11. The flaw (CWE-121) is triggered locally with low complexity and no user interaction, yielding high confidentiality, integrity, and availability impact per the CVSS:3.1 vector. No public exploit code or CISA KEV listing is identified at time of analysis, but the low-privilege requirement and zero interaction needed make this a realistic post-compromise escalation primitive.
Heap-based buffer overflow in Windows Biometric Service (WinBioSvc) enables an authenticated local attacker to escalate privileges on a broad range of Windows client and server releases. The flaw (CWE-122) requires only a low-privileged local session and no user interaction, making it a reliable second-stage payload in multi-step attack chains. Microsoft has released patches across all affected build lines; no public exploit code or CISA KEV listing has been identified at time of analysis.
Local privilege escalation in the Windows Biometric Service (WbioSrvc) allows a low-privileged authenticated local user to gain full SYSTEM-level control via a CWE-190 integer overflow that leads to memory corruption. The vulnerability spans a broad swath of Windows desktop and server releases - from Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025 - making the exposure surface very wide. No public exploit code or CISA KEV listing has been identified at time of analysis; the issue was reported through Microsoft's MSRC channel and a vendor patch is available.
Privilege escalation via heap-based buffer overflow in Windows Installer (msiexec) allows a low-privileged local user to gain full system control. Affected product is Microsoft Windows across versions that ship with the vulnerable Windows Installer component; exact version scope is defined by the MSRC advisory. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in CISA's KEV catalog, though its low-complexity, no-user-interaction profile makes it a realistic post-foothold escalation tool.
Stack-based buffer overflow in the Windows Installer component (msiexec) enables local privilege escalation to SYSTEM on affected Windows systems. An attacker holding any standard local user account can trigger the overflow with low complexity and no user interaction required, achieving full compromise of confidentiality, integrity, and availability. No public exploit has been identified at time of analysis, and this vulnerability does not appear in the CISA KEV catalog based on available data.
Privilege escalation in Windows Installer exposes all supported Windows systems to SYSTEM-level compromise by any low-privileged local user. The heap-based buffer overflow (CWE-122) in the Installer service requires only an authenticated local session - no user interaction, no elevated credentials, and low attack complexity per CVSS:3.1/AV:L/AC:L/PR:L/UI:N. No public exploit code or active exploitation via CISA KEV has been identified at time of analysis, but the ubiquity of Windows Installer and the straightforward exploitation conditions make this a meaningful post-compromise escalation primitive.
Local privilege escalation in Windows Installer (msiexec) stems from a stack-based buffer overflow (CWE-121) exploitable by any authenticated local user. An attacker with low-privilege access on an affected Windows system can trigger the overflow to gain full SYSTEM-level control, achieving complete confidentiality, integrity, and availability compromise of the local host. No public exploit code or CISA KEV listing has been identified at time of analysis, though the low attack complexity and broad Windows deployment footprint make this a meaningful priority for patch management.
Privilege escalation via heap-based buffer overflow in the Windows DNS component affects Windows 10, Windows 11, and Windows Server editions spanning Server 2012 through Server 2025. An authorized local attacker holding low-privilege credentials can trigger the overflow to achieve full system compromise (C:H/I:H/A:H). No public exploit code or active exploitation has been identified at time of analysis; a vendor-released patch is available through the Microsoft Security Response Center advisory.
Local privilege escalation in the Windows Ancillary Function Driver for WinSock (afd.sys) allows a low-privileged local attacker to gain full system control through a use-after-free memory corruption condition. The CVSS vector (AV:L/AC:H/PR:L) confirms the attack is constrained to local access with high complexity, meaning exploitation is non-trivial and likely requires precise timing or race condition triggering. No public exploit code and no CISA KEV listing have been identified at time of analysis, though the tags indicate Denial of Service is also a potential impact alongside privilege escalation.
Heap-based buffer overflow in the Windows DNS component enables a locally authenticated low-privileged attacker to escalate privileges to SYSTEM across a broad range of Windows releases, from Windows 10 version 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025. The CVSS 3.1 score of 7.8 reflects low attack complexity and full confidentiality, integrity, and availability impact once local access is obtained, with no user interaction required. No public exploit code or active exploitation has been identified at time of analysis, and a vendor-released patch is available via the Microsoft Security Response Center.
Privilege escalation in the Windows Ancillary Function Driver for WinSock (afd.sys) allows a locally authenticated attacker to gain SYSTEM-level privileges through a use-after-free memory corruption flaw. Affected systems include Windows installations where the WinSock subsystem is active, which covers virtually all Windows deployments. No public exploit code or active exploitation has been identified at time of analysis, though the high-complexity exploitation bar somewhat limits immediate opportunistic risk.
Local privilege escalation in the Windows Cross Device Service (CVE-2026-66804) allows a low-privileged authenticated user to gain SYSTEM or elevated permissions on the local machine. The flaw stems from CWE-284 (Improper Access Control), meaning the service fails to adequately enforce authorization boundaries between user privilege levels. No public exploit or CISA KEV listing has been identified at time of analysis, but the low attack complexity and absence of required user interaction make this a straightforward target for post-compromise lateral movement or privilege escalation tooling.
Remote code execution is possible in Microsoft Azure Attestation and the Device Health Attestation Service due to a race condition (CWE-362) in shared resource handling. An unauthenticated network attacker who can win a precise timing window can achieve full confidentiality, integrity, and availability compromise of the affected service. No public exploit code or CISA KEV listing has been identified at time of analysis, though the high-complexity nature of the flaw provides some natural exploitation barrier.
Local privilege escalation in Windows Key Guard exposes any authenticated local user to full system compromise via a heap-based buffer overflow (CWE-122). The CVSS vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) confirms low-complexity exploitation requiring only a standard local user session - no elevated rights, no user interaction. This class of vulnerability is a staple post-initial-access technique in ransomware and APT intrusion chains. No public exploit identified at time of analysis, and no CISA KEV listing is present in the provided data.
Local privilege escalation in the Windows Storage Port Driver (storport.sys) exploits a heap-based buffer overflow to allow an authorized low-privilege user to gain SYSTEM-level control of an affected Windows host. The CVSS 7.8 vector (AV:L/AC:L/PR:L/UI:N) confirms the attack requires only an existing low-privilege local session - no additional permissions or user interaction are needed - with full confidentiality, integrity, and availability impact upon success. No public exploit has been identified at time of analysis, and no active exploitation has been confirmed in CISA KEV.
Privilege escalation in Windows DNS affects every major Windows 10, 11, and Windows Server release from 2012 through 2025, allowing a locally authenticated low-privileged attacker to achieve full system compromise through a heap-based buffer overflow triggered by integer wraparound. The CVSS base score of 7.8 reflects total C/I/A impact and low attack complexity once local access exists. No public exploit code has been identified at time of analysis, and EPSS at 0.26% (17th percentile) confirms low current exploitation probability - though SSVC rates technical impact as total, underscoring that successful exploitation yields complete system control.
Privilege escalation in Windows Message Queuing (MSMQ) allows a locally authenticated attacker to gain SYSTEM-level privileges via a heap-based buffer overflow. Affected systems are those running Windows with the Message Queuing service enabled. The CVSS score of 7.8 (High) reflects high confidentiality, integrity, and availability impact, though exploitation requires existing local access. No public exploit or CISA KEV listing has been identified at time of analysis.
Privilege escalation in Windows Desktop Window Manager (DWM) is possible via a use-after-free memory corruption flaw exploitable by a locally authenticated low-privileged attacker. Successful exploitation grants full control over confidentiality, integrity, and availability of the affected system, consistent with elevation to SYSTEM-level privileges. No public exploit code has been identified at time of analysis, and CISA KEV listing has not been confirmed.
Heap-based buffer overflow in the Windows Desktop Window Manager (dwm.exe) enables a locally authenticated low-privileged user to escalate to SYSTEM-level privileges. The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms exploitation requires only existing local access with standard user credentials and no user interaction, making this a viable second-stage privilege escalation tool post-initial-compromise. No public exploit or CISA KEV listing has been identified at time of analysis, but the low attack complexity is a meaningful risk signal for defenders.
Privilege escalation in Windows Desktop Window Manager (DWM) allows a low-privileged local attacker to exploit a heap-based buffer overflow and obtain SYSTEM-level access. The vulnerability affects all modern Windows systems where DWM is running - its default state on any graphical Windows installation - and requires no user interaction once the attacker has local code execution. No public exploit identified at time of analysis and not listed in CISA KEV, though the low attack complexity (AC:L) meaningfully reduces the skill threshold for weaponization.
Windows Autopilot on Windows 11 versions 24H2, 25H2, and 26H1 contains a double-free memory corruption flaw that allows a locally authenticated, low-privileged attacker to escalate to full system privileges. The vulnerability carries a CVSS 3.1 score of 7.0 with high attack complexity (AC:H), meaning reliable exploitation requires specific conditions or timing to be met rather than being trivially reproducible. A vendor-released patch is available via the Microsoft Security Response Center, and no public exploit has been identified at time of analysis.
Privilege escalation in Windows Autopilot on Windows 11 (versions 24H2, 25H2, and 26H1) is caused by a use-after-free memory corruption flaw (CWE-416) that allows a locally authenticated low-privileged attacker to achieve SYSTEM-level access. The CVSS 7.0 score reflects full CIA impact offset by a strictly local attack vector and high attack complexity, consistent with a race condition or heap manipulation requirement rather than a trivial trigger. No public exploit code or CISA KEV listing has been identified at time of analysis.
Privilege escalation via use-after-free in Windows Win32K (win32k.sys) affects Windows 11 versions 24H2, 25H2, and 26H1, as well as Windows Server 2025 in both full and Server Core installations. An authenticated local attacker exploiting CWE-416 memory corruption in the Win32K kernel subsystem can elevate from low-privileged user to SYSTEM-level access. No public exploit or CISA KEV listing has been identified at time of analysis; however, Microsoft has released a patch addressing all affected build ranges.
Privilege escalation in Windows Win32K via a use-after-free memory corruption flaw enables a locally authenticated standard user to gain SYSTEM-level access across a broad range of Microsoft Windows desktop and server releases. The vulnerability resides in the win32k.sys kernel-mode driver and carries a CVSS 7.8 score with low attack complexity and no user interaction required once local code execution is established. No public exploit has been identified at time of analysis and the vulnerability is not listed in CISA KEV, though vendor patch is available and Win32K LPE flaws are historically attractive as second-stage payloads in chained attack campaigns.
Local privilege escalation in Windows Installer (msiexec) enables an authenticated low-privileged user to trigger a heap-based buffer overflow, potentially achieving SYSTEM-level code execution across a broad range of Windows client and server platforms spanning over a decade of releases. Affected systems include Windows 10 through Windows 11 25H2 and Windows Server 2012 through Server 2025, making the exposure surface extensive across enterprise and consumer deployments. No public exploit identified at time of analysis and no active exploitation confirmed via CISA KEV; vendor-released patches are available through the Microsoft Security Response Center.
Privilege escalation in the Windows Kernel (CVE-2026-65773) enables a locally authenticated low-privileged attacker to gain full SYSTEM-level control over affected systems, with high impact on confidentiality, integrity, and availability. The flaw affects a wide swath of Windows releases - from Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025 - making the exposed surface exceptionally broad. No public exploit or CISA KEV listing has been identified at time of analysis, though the low attack complexity (AC:L) means a working exploit, once developed, would require minimal environmental preconditions.
Privilege escalation via use-after-free in the Windows Win32K kernel subsystem affects Windows 10, Windows 11, and Windows Server releases from 2016 through 2025. An authorized local attacker with low-level authenticated access can exploit memory corruption in Win32K's kernel pool to elevate to SYSTEM-level privileges. CVSS rates this 7.0 with high attack complexity (AC:H); no CISA KEV listing or public proof-of-concept has been identified at time of analysis.
Privilege escalation in the Windows Remote Access API via a heap-based buffer overflow (CWE-122) allows an authenticated local attacker with low privileges to gain full SYSTEM-level control over affected Windows 11 and Windows Server 2022/2025 hosts. The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms exploitation requires only a valid local account and no user interaction, making it a reliable post-compromise escalation path. No public exploit code or CISA KEV listing has been identified at time of analysis; Microsoft has released patches for all enumerated affected versions.
Privilege escalation via heap buffer overflow in the Windows Remote Access (RAS) API affects every major in-support Windows desktop and server release, from Server 2012 R2 through Windows 11 26H1 and Server 2025. An authenticated local attacker with low-privileged access can trigger a CWE-122 heap overflow to achieve full SYSTEM-level compromise with High confidentiality, integrity, and availability impact and no user interaction required. No public exploit code or active exploitation has been identified at time of analysis; Microsoft has released a patch across all affected build lines.
Privilege escalation in the Windows Backup Engine component affects a broad range of Microsoft Windows client and server releases, exploitable by a local authenticated user holding standard privileges. The vulnerability stems from a race condition (CWE-362) in how the Backup Engine manages shared resources under concurrent execution, creating a timing window that a low-privileged attacker can win to gain elevated - likely SYSTEM-level - access. No public exploit identified at time of analysis and the vulnerability is absent from the CISA KEV catalog; however, Microsoft has issued patched builds across all affected platform branches.
Privilege escalation via heap-based buffer overflow in the Windows Desktop Window Manager (DWM) Core Library affects a broad range of Windows client and server editions spanning from Windows 10 1607 through Windows 11 26H1 and multiple Windows Server releases. An authenticated local attacker can exploit the overflow to gain full system-level privileges, achieving high confidentiality, integrity, and availability impact on the compromised host. No public exploit has been identified at time of analysis, and no active exploitation has been confirmed by CISA KEV, but the vendor has released patches addressing the affected builds.
Privilege escalation in the Windows Capability Access Management Service (camsvc) allows a local authenticated attacker to gain SYSTEM-level access via a use-after-free (UAF) memory corruption flaw. The vulnerability spans a wide surface including Windows 10 (versions 1809, 21H2, 22H2), Windows 11 (versions 23H2 through 26H1), and Windows Server 2019, 2022, and 2025, covering both standard and Server Core installations. No public exploit code or active exploitation has been confirmed at time of analysis; however, the breadth of affected builds and the high CIA impact upon successful exploitation make patching a priority for organizations with multi-user or shared Windows environments.
Local code execution via heap-based buffer overflow in Windows GDI+ (Graphics Device Interface Plus) affects a wide range of Windows desktop and server editions from Windows Server 2012 through Windows 11 26H1 and Windows Server 2025. Any locally authenticated low-privilege user can trigger the overflow, gaining full control over confidentiality, integrity, and availability on the affected host. No public exploit code has been identified at time of analysis, and the vulnerability does not appear in the CISA KEV catalog, but Microsoft has released patches across all affected version branches.