Vulnerabilidades do Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)

CVE-2026-20929 Alta · 7.5 Exploit público CWE-284 13/01/2026

Windows HTTP.sys Elevation of Privilege Vulnerability

Improper access control in Windows HTTP.sys allows an authorized attacker to elevate privileges over a network.

CVE-2026-20927 Média · 5.3 CWE-362 13/01/2026

Windows SMB Server Denial of Service Vulnerability

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

CVE-2026-20926 Alta · 7.5 CWE-362 13/01/2026

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.

CVE-2026-20925 Média · 6.5 CWE-73 13/01/2026

NTLM Hash Disclosure Spoofing Vulnerability

External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-20924 Alta · 7.8 CWE-362 13/01/2026

Windows Management Services Elevation of Privilege Vulnerability

Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

CVE-2026-20923 Alta · 7.8 CWE-416 13/01/2026

Windows Management Services Elevation of Privilege Vulnerability

Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

CVE-2026-20922 Alta · 7.8 CWE-122 13/01/2026

Windows NTFS Remote Code Execution Vulnerability

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

CVE-2026-20921 Alta · 7.5 CWE-362 13/01/2026

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.

CVE-2026-20920 Alta · 7.8 CWE-416 13/01/2026

Win32k Elevation of Privilege Vulnerability

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

CVE-2026-20919 Alta · 7.5 CWE-362 13/01/2026

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.

CVE-2026-20918 Alta · 7.8 CWE-362 13/01/2026

Windows Management Services Elevation of Privilege Vulnerability

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

CVE-2026-20877 Alta · 7.8 CWE-362 13/01/2026

Windows Management Services Elevation of Privilege Vulnerability

Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

CVE-2026-20876 Média · 6.7 CWE-122 13/01/2026

Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.

CVE-2026-20875 Alta · 7.5 CWE-476 13/01/2026

Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability

Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.

CVE-2026-20874 Alta · 7.8 CWE-362 13/01/2026

Windows Management Services Elevation of Privilege Vulnerability

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

CVE-2026-20873 Alta · 7.8 CWE-362 13/01/2026

Windows Management Services Elevation of Privilege Vulnerability

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

CVE-2026-20872 Média · 6.5 CWE-73 13/01/2026

NTLM Hash Disclosure Spoofing Vulnerability

External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-20871 Alta · 7.8 CWE-416 13/01/2026

Desktop Window Manager Elevation of Privilege Vulnerability

Use after free in Desktop Windows Manager allows an authorized attacker to elevate privileges locally.

CVE-2026-20869 Alta · 7.0 CWE-362 13/01/2026

Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Local Session Manager (LSM) allows an authorized attacker to elevate privileges locally.

CVE-2026-20868 Alta · 8.8 CWE-122 13/01/2026

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

Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

CVE-2026-20867 Alta · 7.8 CWE-362 13/01/2026

Windows Management Services Elevation of Privilege Vulnerability

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

CVE-2026-20866 Alta · 7.8 CWE-362 13/01/2026

Windows Management Services Elevation of Privilege Vulnerability

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

CVE-2026-20865 Alta · 7.8 CWE-416 13/01/2026

Windows Management Services Elevation of Privilege Vulnerability

Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

CVE-2026-20864 Alta · 7.8 CWE-122 13/01/2026

Windows Connected Devices Platform Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Connected Devices Platform Service (Cdpsvc) allows an authorized attacker to elevate privileges locally.

CVE-2026-20863 Alta · 7.0 CWE-415 13/01/2026

Win32k Elevation of Privilege Vulnerability

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