Quick answers
- Is CVE-2026-122165 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-122165 being exploited in the wild.
- How severe is CVE-2026-122165?
- High severity, with a CVSS score of 7.8, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Windows Client for NFS.
- Is there a fix for CVE-2026-122165?
- 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-2026-122165 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-122165?
- Check whether you run Microsoft Windows Client for NFS. 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 vulnerability exists in Windows Client for NFS that allows privilege escalation. An authorized local attacker can trigger the overflow to execute arbitrary code with elevated privileges. The vulnerability requires prior authentication or local system access to exploit.
Affected products
- Microsoft Windows Client for NFS
Timeline
- 2026-11-10: disclosed