Quick answers
- Is CVE-2026-114164 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-114164 being exploited in the wild.
- How severe is CVE-2026-114164?
- High severity, with a CVSS score of 8.8, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Windows Codecs Library.
- Is there a fix for CVE-2026-114164?
- 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-2026-114164 attacked?
- It is attacked over the network, in an operating system.
- Am I affected by CVE-2026-114164?
- Check whether you run Microsoft Windows Codecs Library. 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 integer underflow (wraparound) flaw in Microsoft's Windows Codecs Library allows remote code execution when processing malformed media files. The vulnerability is triggered over the network without requiring authentication or user interaction beyond opening a crafted file, and results in arbitrary code execution in the context of the affected application.
Affected products
- Microsoft Windows Codecs Library
Timeline
- 2026-11-10: disclosed