CVE-2026-85333: Microsoft Windows Performance Monitor privilege escalation

CVE-2026-85333 · Severity: medium · CVSS 6.7 · Published 2026-10-13

Windows Performance Monitor is a system tool used to monitor and analyze computer performance metrics. A race condition in the shared resource handling allows an authorized user to escalate their privileges locally, potentially gaining administrative access to the system.

Technologies: Microsoft Windows Performance Monitor, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 23h2, Microsoft Windows 11 24h2, Microsoft Windows 11 25h2, Microsoft Windows 11 26h1, Microsoft Windows 11 26h2, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2025. Vendors: Microsoft.

Quick answers

Is CVE-2026-85333 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-85333 being exploited in the wild.
How severe is CVE-2026-85333?
Medium severity, with a CVSS score of 6.7, published 13 October 2026.
Which products and versions are affected?
Microsoft Windows Performance Monitor.
Is there a fix for CVE-2026-85333?
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-2026-85333 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2026-85333?
Check whether you run Microsoft Windows Performance Monitor, Microsoft Windows 10 1607, Microsoft Windows 10 1809 or one of the others listed. 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 race condition exists in Windows Performance Monitor due to improper synchronization when accessing shared resources. An authenticated local attacker can exploit this vulnerability to elevate privileges. A fix is available from Microsoft.

Affected products

  • Microsoft Windows Performance Monitor

Timeline

  • 2026-10-13: disclosed

References

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