CVE-2025-22225
Actively exploited. CVE-2025-22225 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 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.
CSIRTS triage
- What
- An arbitrary write vulnerability allows an attacker to trigger an arbitrary kernel write leading to a sandbox escape.
- Who is affected
- Users with privileges within the VMX process on VMware ESXi.
- Urgency
- Remediation is critical as the vulnerability is actively exploited and poses a severe risk.
- Action
- Install the latest patches from VMware to mitigate this issue.
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 57% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2025-22225: VMware ESXi Arbitrary Write Vulnerabilitycisa-kev · 2025-03-04
External references
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