CVE-2026-105004: Windows Overlay Filter out-of-bounds read privilege elevation

CVE-2026-105004 · Severity: high · CVSS 7.8 · Published 2026-10-13

Windows Overlay Filter, a component that manages visual effects and display overlays in Windows, contains an out-of-bounds read vulnerability that allows an authenticated local attacker to escalate their privileges to a higher level of system access. An attacker with local access could exploit this to gain administrative control of the system.

Technologies: Microsoft Windows Overlay Filter. Vendors: Microsoft.

Quick answers

Is CVE-2026-105004 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-105004 being exploited in the wild.
How severe is CVE-2026-105004?
High severity, with a CVSS score of 7.8, published 13 October 2026.
Which products and versions are affected?
Microsoft Windows Overlay Filter.
Is there a fix for CVE-2026-105004?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-105004 attacked?
It is attacked with local access.
Am I affected by CVE-2026-105004?
Check whether you run Microsoft Windows Overlay Filter. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An out-of-bounds read flaw in Windows Overlay Filter permits privilege escalation via a local attack vector. The vulnerability requires authenticated access and local execution capability; the attacker must already have a user account on the target system to exploit it. Successful exploitation grants elevated system privileges.

Affected products

  • Microsoft Windows Overlay Filter

Timeline

  • 2026-10-13: advisory

References

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