CVE-2025-22224
VMware ESXi and Workstation TOCTOU Race Condition Vulnerability
VMware ESXi and WorkstationContainers & cloud
CVSS
9.3CriticalExploit odds (EPSS)1.56%Chance of exploitation activity in the next 30 days, higher than 75% of CVEs. Scored 23 Oct 2026FIRST EPSS
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA KEV
What fixes it
- 17.6.3WorkstationCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Timeline
Description
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.
Text from CVE List
Affected versions 7
- ESXiaffected: 8.0 before ESXi80U3d-24585383CVE List
- ESXiaffected: 8.0 before ESXi80U2d-24585300CVE List
- ESXiaffected: 7.0 before ESXi70U3s-24585291CVE List
- Workstationaffected: 17.x before 17.6.3CVE List
- VMware Cloud Foundationaffected: 5.x, 4.5.xCVE List
- Telco Cloud Platformaffected: 5.x, 4.x, 3.x, 2.xCVE List
- Telco Cloud Infrastructureaffected: 3.x, 2.xCVE List