CVE-2026-113860: Windows Hyper-V use-after-free privilege escalation

CVE-2026-113860 · Severity: high · CVSS 7 · Published 2026-11-10

Windows Hyper-V, Microsoft's virtualization platform, contains a use-after-free vulnerability that allows an authorized local user to elevate their privileges. An attacker who already has access to a system could exploit this flaw to gain higher-level control, potentially compromising the hypervisor and any virtual machines running on it.

Technologies: Microsoft Windows Hyper-V. Vendors: Microsoft.

Quick answers

Is CVE-2026-113860 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-113860 being exploited in the wild.
How severe is CVE-2026-113860?
High severity, with a CVSS score of 7, published 10 November 2026.
Which products and versions are affected?
Microsoft Windows Hyper-V.
Is there a fix for CVE-2026-113860?
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-2026-113860 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2026-113860?
Check whether you run Microsoft Windows Hyper-V. 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 Hyper-V that permits local privilege escalation. The vulnerability requires an authenticated attacker with local access; remote exploitation is not possible. Successful exploitation grants elevated privileges on the affected system.

Affected products

  • Microsoft Windows Hyper-V

Timeline

  • 2026-11-10: disclosed

References

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