Quick answers
- Is CVE-2026-96157 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-96157 being exploited in the wild.
- How severe is CVE-2026-96157?
- Critical severity, with a CVSS score of 9.8, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Windows Media Foundation.
- Is there a fix for CVE-2026-96157?
- 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-2026-96157 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-96157?
- 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 Microsoft Windows Media Foundation's media processing logic. An attacker can trigger memory corruption by crafting a malicious media file and delivering it over the network, achieving remote code execution with high integrity. The vulnerability requires no authentication or user interaction beyond file processing.
Affected products
- Microsoft Windows Media Foundation
Timeline
- 2026-11-10: disclosed