CVE-2025-22224
Actively exploited. CVE-2025-22224 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-03-04) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
VMware ESXi and Workstation contain a time-of-check time-of-use (TOCTOU) race condition vulnerability that leads to an out-of-bounds write. Successful exploitation enables an attacker with local administrative privileges on a virtual machine to execute code as the virtual machine's VMX process running on the host.
CSIRTS triage
- What
- A TOCTOU race condition vulnerability leads to an out-of-bounds write, allowing code execution as the VMX process.
- Who is affected
- Users with local administrative privileges on a virtual machine running VMware ESXi or Workstation.
- Urgency
- Critical urgency for remediation due to active exploitation and high severity.
- Action
- Apply the latest security updates provided by VMware.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 72% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2025-22224: VMware ESXi and Workstation TOCTOU Race Condition Vulnerabilitycisa-kev · 2025-03-04
External references
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