CVE-2025-22225

HIGH8.2

CISA KEV

Published 2025-03-04 · Updated 2026-08-04 · Source security@vmware.com

Summary

CVE-2025-22225 is a high-severity (CVSS 8.2) vulnerability in VMware ESXi. CISA added it to the Known Exploited Vulnerabilities catalog on March 4, 2025, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by March 25, 2025. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. VMware has 26 vulnerabilities in the KEV catalog, 9 of them linked to ransomware.

All 26 known-exploited VMware vulnerabilities →

Description

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.

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

CWE-787CWE-123

CISA Known-Exploited Vulnerability

Product: VMware — ESXi

Name: VMware ESXi Arbitrary Write Vulnerability

Date added: 2025-03-04 · Due: 2025-03-25

USED IN RANSOMWARE

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

References

View on NVD

More exploited VMware vulnerabilities

Most recently added to CISA KEV

CVE-2025-22226
ESXi, Workstation, and Fusion — VMware ESXi, Workstation, and Fusion Information Disclosure Vulnerability
added 2025-03-04
CVE-2025-22224
ESXi and Workstation — VMware ESXi and Workstation TOCTOU Race Condition Vulnerability
added 2025-03-04
CVE-2024-38813
vCenter Server — VMware vCenter Server Privilege Escalation Vulnerability
added 2024-11-20
CVE-2024-38812
vCenter Server — VMware vCenter Server Heap-Based Buffer Overflow Vulnerability
added 2024-11-20
CVE-2024-37085
RANSOMWARE
ESXi — VMware ESXi Authentication Bypass Vulnerability
added 2024-07-30
CVE-2022-22948
vCenter Server — VMware vCenter Server Incorrect Default File Permissions Vulnerability
added 2024-07-17

View all →

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