Quick answers
- Is CVE-2026-122172 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-122172 being exploited in the wild.
- How severe is CVE-2026-122172?
- High severity, with a CVSS score of 7.8, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Trace Data Helper.
- Is there a fix for CVE-2026-122172?
- 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-2026-122172 attacked?
- It is attacked with local access, in an operating system.
- Am I affected by CVE-2026-122172?
- Check whether you run Microsoft Trace Data Helper. 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 flaw in Microsoft Trace Data Helper enables privilege escalation when an authenticated local attacker triggers memory access after an object has been freed. The vulnerability requires local access and existing user privileges; successful exploitation grants elevated system-level access.
Affected products
- Microsoft Trace Data Helper
Timeline
- 2026-11-10: disclosed