CISA-confirmed known exploited vulnerability

CVE-2025-22225

VMware ESXi Arbitrary Write Vulnerability

VMware · ESXi

Vulnerability details

VMware ESXi contains an arbitrary write vulnerability. Successful exploitation allows an attacker with privileges within the VMX process to trigger an arbitrary kernel write leading to an escape of the sandbox.

Added to CISA KEV: 2025-03-04

Ransomware campaign use: Known

CISA due date: 2025-03-25

Defensive guidance from CISA

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.

Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC

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