CVE-2026-27906

Windows Hello Security Feature Bypass Vulnerability

Improper input validation in Windows Hello allows an authorized attacker to bypass a security feature locally.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 21h2 Windows 10 21h2 Windows 10 22h2 and 10 more

CVE-2026-26181

Microsoft Brokering File System Elevation of Privilege Vulnerability

Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 11 22h3 Windows 11 23h2 Windows 11 23h2 and 11 more

CVE-2026-26180

Windows Kernel Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 27 more

CVE-2026-26179

Windows Kernel Elevation of Privilege Vulnerability

Double free in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 11 22h3 Windows 11 23h2 Windows 11 23h2 and 11 more

CVE-2026-26175

Windows Boot Manager Security Feature Bypass Vulnerability

Use of uninitialized resource in Windows Boot Manager allows an unauthorized attacker to bypass a security feature with a physical attack.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 22 more

CVE-2026-26174

Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Server Update Service allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 27 more

CVE-2026-23674

MapUrlToZone Security Feature Bypass Vulnerability

Improper resolution of path equivalence in Windows MapUrlToZone allows an unauthorized attacker to bypass a security feature over a network.

CVSS 3.1 · 7.5 High EPSS 1.4% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 27 more

CVE-2026-26111

Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability

Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.

CVSS 3.1 · 8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 19 more

CVE-2026-25185

Windows Shell Link Processing Spoofing Vulnerability

Exposure of sensitive information to an unauthorized actor in Windows Shell Link Processing allows an unauthorized attacker to perform spoofing over a network.

CVSS 3.1 · 5.3 Medium EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 27 more

CVE-2026-25178

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 27 more

CVE-2026-25174

Windows Extensible File Allocation Table Elevation of Privilege Vulnerability

Out-of-bounds read in Windows Extensible File Allocation allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 27 more

CVE-2026-25170

Windows Hyper-V Elevation of Privilege Vulnerability

Use after free in Windows Hyper-V allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 11 22h3 Windows 11 23h2 Windows 11 23h2 and 12 more

CVE-2026-25166

Windows System Image Manager Assessment and Deployment Kit (ADK) Remote Code Execution Vulnerability

Deserialization of untrusted data in Windows System Image Manager allows an authorized attacker to execute code locally.

CVSS 3.1 · 7.8 High EPSS 1.9% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 18 more

CVE-2026-24295

Windows Device Association Service Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 22 more

CVE-2026-24291

Windows Accessibility Infrastructure (ATBroker.exe) Elevation of Privilege Vulnerability

Incorrect permission assignment for critical resource in Windows Accessibility Infrastructure (ATBroker.exe) allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS 4.6% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 27 more

CVE-2026-24287

Windows Kernel Elevation of Privilege Vulnerability

External control of file name or path in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1809 Windows 10 21h2 Windows 10 21h2 and 19 more

CVE-2026-23669

RPC Runtime Library Remote Code Execution Vulnerability

Use after free in RPC Runtime allows an authorized attacker to execute code over a network.

CVSS 3.1 · 8.8 High EPSS 1.0% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 27 more

CVE-2026-21513

MSHTML Framework Security Feature Bypass Vulnerability

Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network.

CVSS 3.1 · 8.8 High EPSS 15.9% KEV · Listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 27 more

CVE-2026-21533

Windows Remote Desktop Services Elevation of Privilege Vulnerability

Improper privilege management in Windows Remote Desktop allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS 4.3% KEV · Listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 27 more

CVE-2026-21525

Windows Remote Access Connection Manager Denial of Service Vulnerability

Null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker to deny service locally.

CVSS 3.1 · 6.2 Medium EPSS 5.0% KEV · Listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 27 more