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CVE-2025-22224

Critical CVSS 9.3 Known exploited

Published 2025-03-04 · last changed 2026-06-17 · added to CISA KEV 2025-03-04

This one is being exploited in the wild.

CISA added CVE-2025-22224 to the Known Exploited Vulnerabilities catalog on 2025-03-04. Federal agencies are required to remediate it on a deadline. If you have affected machines, this is the class of finding that moves ahead of the rest of the queue.

The fix

We hold no Microsoft remediation data for CVE-2025-22224, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

VMware ESXi, and Workstation contain a TOCTOU (Time-of-Check Time-of-Use) vulnerability that leads to an out-of-bounds write. A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host.

Sources

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H