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CVE-2025-22225

High CVSS 8.2 Known exploited

Published 2025-03-04 · last changed 2026-08-04 · added to CISA KEV 2025-03-04

This one is being exploited in the wild.

CISA added CVE-2025-22225 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-2025-22225, 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 contains an arbitrary write vulnerability. A malicious actor with privileges within the VMX process may trigger an arbitrary kernel write leading to an escape of the sandbox.

Sources

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