CVE-2026-69349 Windows Management Instrumentation Information Disclosure Vulnerability

Medium 5.7 Published Updated

An authorized attacker can disclose sensitive information over the network via uninitialized resources in Windows Management Instrumentation.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-69349?

CVE-2026-69349 is a medium-severity vulnerability in Microsoft Windows 10 1607, published on 8 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Use of uninitialized resource in Windows Management Instrumentation allows an authorized attacker to disclose information over a network.

Weakness: CWE-908

Which versions are affected by CVE-2026-69349?

It affects 13 products.

Products include Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 23h2, Microsoft Windows 11 24h2 and 7 more.

How do I fix CVE-2026-69349?

No fix has been published for CVE-2026-69349 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-69349 being exploited?

There is no known exploitation of CVE-2026-69349 in the wild and no public exploit code.

All Microsoft Windows 10 1607 vulnerabilities

Sources

Also known as GHSA-543x-j8x7-cv8p.

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