Quick answers
- Is CVE-2026-119869 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-119869 being exploited in the wild.
- How severe is CVE-2026-119869?
- Medium severity, with a CVSS score of 6.4, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Windows Failover Cluster.
- Is there a fix for CVE-2026-119869?
- 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-2026-119869 attacked?
- It is attacked with local access, in an operating system.
- Am I affected by CVE-2026-119869?
- Check whether you run Microsoft Windows Failover Cluster. 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 use-after-free vulnerability exists in Windows Failover Cluster that can be exploited by an authenticated local attacker to achieve privilege escalation. The vulnerability requires local access and prior authentication but does not require user interaction. A successful exploit grants the attacker elevated privileges on the affected system.
Affected products
- Microsoft Windows Failover Cluster
Timeline
- 2026-11-10: disclosed