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

CVE-2026-21519

Desktop Window Manager Elevation of Privilege Vulnerability

Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS 2.6% KEV · Listed

Vendors

Microsoft

Products

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

CVE-2026-21235

Windows Graphics Component Elevation of Privilege Vulnerability

Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

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

CVE-2026-21248

Windows Hyper-V Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.

CVSS 3.1 · 7.3 High EPSS 1.3% KEV · Not listed

Vendors

Microsoft

Products

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

CVE-2026-21247

Windows Hyper-V Remote Code Execution Vulnerability

Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

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

CVE-2026-21246

Windows Graphics Component Elevation of Privilege Vulnerability

Heap-based buffer overflow in Microsoft Graphics Component 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 25 more

CVE-2026-21242

Windows Subsystem for Linux Elevation of Privilege Vulnerability

Use after free in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.

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

Vendors

Microsoft

Products

Windows 10 21h2 Windows 10 21h2 Windows 10 22h2 and 16 more

CVE-2026-21234

Windows Connected Devices Platform Service Elevation of Privilege Vulnerability

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

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

Vendors

Microsoft

Products

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

CVE-2026-21236

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock 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-2026-21510

Windows Shell Security Feature Bypass Vulnerability

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

CVSS 3.1 · 8.8 High EPSS 61.2% KEV · Listed

Vendors

Microsoft

Products

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

CVE-2026-21508

Windows Storage Elevation of Privilege Vulnerability

Improper authentication in Windows Storage 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-2026-21255

Windows Hyper-V Security Feature Bypass Vulnerability

Improper access control in Windows Hyper-V allows an authorized attacker to bypass a security feature locally.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

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

CVE-2026-21253

Mailslot File System Elevation of Privilege Vulnerability

Use after free in Mailslot File System 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