Quick answers
- Is CVE-2026-81352 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-81352 being exploited in the wild.
- How severe is CVE-2026-81352?
- High severity, with a CVSS score of 8.8, published 8 September 2026.
- Which products and versions are affected?
- Microsoft Windows Codecs Library <UNKNOWN>.
- Is there a fix for CVE-2026-81352?
- 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-2026-81352 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-81352?
- Check whether you run Microsoft Windows Codecs Library at an affected version. 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
The vulnerability is a heap-based buffer overflow in the Windows Codecs Library, a system component that decodes multimedia formats. The vulnerability can be triggered over the network (remote code execution) without requiring authentication or user interaction. An attacker can exploit this flaw by sending specially crafted audio or video data to trigger the overflow, allowing arbitrary code execution with the privileges of the affected process. A patch is expected to be available through Microsoft's security update process.
Affected products
- Microsoft Windows Codecs Library <UNKNOWN>
Timeline
- 2026-09-08: disclosed