Main Vulnerability Database Vulnerabilities #VU165467

Untrusted Pointer Dereference in Microsoft Windows and Windows Server - CVE-2026-122475

Published: November 11, 2026

Vulnerability identifier: #VU165467

CSH Severity: High

CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-122475

CWE-ID: CWE-822

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on an affected client system.

The vulnerability exists due to an untrusted pointer dereference in Windows Storage Spaces Controller when processing a malicious server's response. A remote attacker can host a malicious server and convince a user to connect to it from an affected client to execute arbitrary code on the client system.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2026-122475

Install security update from vendor's website.

Microsoft Windows - addressed in versions 11 23H2 10.0.22631.7711, 11 24H2 10.0.26100.9911, 11 24H2 10.0.26100.9974, 11 25H2 10.0.26200.9911, 11 25H2 10.0.26200.9974, 11 26H1 10.0.28000.3501
Windows Server - addressed in versions 2025 10.0.26100.33730, 2025 10.0.26100.33822

External References

Related Security Bulletins