Quick answers
- Is CVE-2026-73011 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-73011 being exploited in the wild.
- How severe is CVE-2026-73011?
- High severity, with a CVSS score of 7.8, published 8 September 2026.
- Which products and versions are affected?
- Microsoft Windows Biometric Service.
- Is there a fix for CVE-2026-73011?
- 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-2026-73011 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-73011?
- Check whether you run Microsoft Windows Biometric Service. 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
This vulnerability is a heap-based buffer overflow in the Windows Biometric Service that can be exploited by an authorized local user to achieve privilege escalation. The vulnerability requires local access and user authentication to trigger. Successful exploitation allows an attacker to execute arbitrary code with elevated system privileges. Microsoft has issued a security update to patch this vulnerability (CVE-2026-73011).
Affected products
- Microsoft Windows Biometric Service
Timeline
- 2026-09-08: disclosed