CVE-2026-122168: Microsoft Windows Media Foundation heap buffer overflow

CVE-2026-122168 · Severity: high · CVSS 7.8 · Published 2026-11-10

Windows Media Foundation is a core Windows component for processing and playing multimedia content. A heap buffer overflow vulnerability allows a local authorized user to gain elevated system privileges, potentially taking full control of the computer and accessing sensitive data.

Technologies: Microsoft Windows Media Foundation. Vendors: Microsoft.

Quick answers

Is CVE-2026-122168 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-122168 being exploited in the wild.
How severe is CVE-2026-122168?
High severity, with a CVSS score of 7.8, published 10 November 2026.
Which products and versions are affected?
Microsoft Windows Media Foundation.
Is there a fix for CVE-2026-122168?
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-2026-122168 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2026-122168?
Check whether you run Microsoft Windows Media Foundation. 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

A heap-based buffer overflow exists in Windows Media Foundation that can be triggered by a local authenticated attacker. The vulnerability enables local privilege escalation when the overflow is exploited, allowing an attacker to execute code with system-level permissions.

Affected products

  • Microsoft Windows Media Foundation

Timeline

  • 2026-11-10: disclosed

References

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