CVE-2025-22225VMwareServers and softwareMarch 4, 2025

VMware ESXi Arbitrary Write Vulnerability

High 8.2Actively exploitedUsed by ransomware

Description

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.

What to do

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

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Details

Vendor
VMware
Product
VMware ESXi
CVE
CVE-2025-22225
Affected versions
ESXi 7.0: from 7.0 GA to 7.0 Update 3r
ESXi 8.0: from 8.0 GA to 8.0 Update 3c
Cloud Foundation: versions not specified
Telco Cloud Infrastructure 2.2: 2.2
Telco Cloud Infrastructure 2.5: 2.5
Telco Cloud Infrastructure 2.7: 2.7
Telco Cloud Infrastructure 3.0: 3.0
Telco Cloud Platform 2.0: 2.0
Telco Cloud Platform 2.5: 2.5
Telco Cloud Platform 2.7: 2.7
Telco Cloud Platform 3.0: 3.0
Telco Cloud Platform 4.0: 4.0, 4.0.1
Telco Cloud Platform 5.0: 5.0 (from the advisory and NVD; check the exact builds in the official advisory)
CVSS score
8.2
Actively exploited
Yes, listed in the CISA Known Exploited Vulnerabilities catalog
CISA due date
March 25, 2025 (deadline for US federal agencies: a good benchmark for you too)
Source
CISA KEV – original advisory
Published
March 4, 2025

The description and the recommended action are quoted from the public advisory; severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.

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