CVE-2026-20829

TPM Trustlet Information Disclosure Vulnerability

Out-of-bounds read in Windows TPM allows an authorized attacker to disclose information locally.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1809 Windows 10 21h2 Windows 10 21h2 and 13 more

CVE-2026-20840

Windows NTFS Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code 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 20 more

CVE-2026-20859

Windows Kernel-Mode Driver Elevation of Privilege Vulnerability

Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.

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

Vendors

Microsoft

Products

Windows 11 24h2 Windows 11 24h2 Windows 11 25h2 and 2 more

CVE-2026-20877

Windows Management Services Elevation of Privilege Vulnerability

Use after free in Windows Management Services 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 13 more

CVE-2026-20920

Win32k Elevation of Privilege Vulnerability

Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

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

Vendors

Microsoft

Products

Windows 11 23h2 Windows 11 23h2 Windows Server 2022 and 2 more

CVE-2026-20870

Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability

Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

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

Vendors

Microsoft

Products

Windows 11 24h2 Windows 11 24h2 Windows 11 25h2 and 2 more

CVE-2026-20823

Windows File Explorer Information Disclosure Vulnerability

Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 15 more

CVE-2026-20827

Tablet Windows User Interface (TWINUI) Subsystem Information Disclosure Vulnerability

Exposure of sensitive information to an unauthorized actor in Tablet Windows User Interface (TWINUI) Subsystem allows an authorized attacker to disclose information locally.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 15 more

CVE-2026-20831

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Time-of-check time-of-use (toctou) race condition 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 20 more

CVE-2026-20836

DirectX Graphics Kernel Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Graphics Kernel 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 15 more

CVE-2026-20838

Windows Kernel Information Disclosure Vulnerability

Generation of error message containing sensitive information in Windows Kernel allows an authorized attacker to disclose information locally.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 11 23h2 Windows 11 23h2 Windows 11 24h2 and 7 more

CVE-2026-20844

Windows Clipboard Server Elevation of Privilege Vulnerability

Use after free in Windows Clipboard Server allows an unauthorized attacker to elevate privileges locally.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 15 more

CVE-2026-20851

Capability Access Management Service (camsvc) Information Disclosure Vulnerability

Out-of-bounds read in Capability Access Management Service (camsvc) allows an unauthorized attacker to disclose information locally.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 11 24h2 Windows 11 24h2 Windows 11 25h2 and 2 more

CVE-2026-20857

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Untrusted pointer dereference in Windows Cloud Files Mini Filter Driver 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 13 more

CVE-2026-20919

Windows SMB Server Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 17 more

CVE-2026-20922

Windows NTFS Remote Code Execution Vulnerability

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

CVSS 3.1 · 7.8 High EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 20 more

CVE-2026-20926

Windows SMB Server Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 17 more

CVE-2026-20932

Windows File Explorer Information Disclosure Vulnerability

Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 15 more

CVE-2026-20830

Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Capability Access Management Service (camsvc) allows an authorized attacker to elevate privileges locally.

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

Vendors

Microsoft

Products

Windows Server 2025

CVE-2026-20854

Windows Local Security Authority Subsystem Service (LSASS) Remote Code Execution Vulnerability

Use after free in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to execute code over a network.

CVSS 3.1 · 7.5 High EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

Windows 11 24h2 Windows 11 24h2 Windows 11 25h2 and 2 more