CVE-2025-22224
VMware ESXi and Workstation TOCTOU Race Condition Vulnerability
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run ESXi and Workstation, fix it now.
CISA 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.
US federal civilian agencies must remediate by Mar 25, 2025.
Patch status
No official fix confirmed yet
Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.
Description
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.
Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.
Affected products
| Product | Vendor | Affected versions | Source |
|---|---|---|---|
| ESXi and Workstation | VMware (Broadcom) | — | KEV |
| vSphere / ESXi / vCenter | VMware (Broadcom) | 7.0; 8.0 | NVD |
Sources: KEV = CISA Known Exploited Vulnerabilities catalog; NVD = NIST National Vulnerability Database.
Intelligence timeline
Developments from the last 30 days, newest first.
- CVSS scoredUpdateKEV
CVE-2025-22224 scored CVSS 8.2: VMware ESXi and Workstation, VMware ESXi and Workstation TOCTOU Race Condition Vulnerability
CISA lists this as exploited in the wild. Unpatched ESXi and Workstation systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
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Coverage
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