CVE-2026-96315 Windows Overlay Filter Tampering Vulnerability

Medium 5.5 Published Updated

An authorized local attacker can tamper with data due to missing authorization in the Windows Overlay Filter.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-96315?

CVE-2026-96315 is a medium-severity missing authorization vulnerability in Microsoft Windows 10 1607, published on 13 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Missing authorization in Windows Overlay Filter allows an authorized attacker to perform tampering locally.

Weakness: CWE-862

Which versions are affected by CVE-2026-96315?

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-2026-96315?

No fix has been published for CVE-2026-96315 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-96315 being exploited?

There is no known exploitation of CVE-2026-96315 in the wild and no public exploit code.

All Microsoft Windows 10 1607 vulnerabilities

Sources

Also known as GHSA-hqgg-wp68-rgx9.

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