CVE-2026-122162 Windows Update Stack Information Disclosure Vulnerability

Medium 5.5 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-122162?

CVE-2026-122162 is a medium-severity vulnerability in Microsoft Windows 11 Version 24H2, published on 10 Nov 2026.

Official description

Integer underflow (wrap or wraparound) in Windows Update Stack allows an authorized attacker to disclose information locally.

Weakness: CWE-191, CWE-125

Which versions are affected by CVE-2026-122162?

How do I fix CVE-2026-122162?

No fix has been published for CVE-2026-122162 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-122162 being exploited?

There is no known exploitation of CVE-2026-122162 in the wild and no public exploit code.

Sources

Also known as GHSA-j9p4-6v8g-w885.

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