Findings

CVE-2025-22224

VMware ESXi and Workstation TOCTOU Race Condition Vulnerability

Published Mar 4, 2025 · updated Jun 17, 2026 · vmware esxi

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.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 4, 2025 · Catalog

    Detected

    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.

  2. Mar 4, 2025 · CISA KEV

    Known exploited

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

  3. Mar 25, 2025 · CISA KEV

    Remediation due

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

  4. Jun 17, 2026 · Catalog

    Updated

    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.

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.

CISA due date Mar 25, 2025

Affected

  • cpe vmware/cloud foundationversion unspecified
  • cpe vmware/esxi7.0
  • vendor VMware ESXi and Workstationversion unspecified

Sources

  • CISA KEVCVE-2025-22224

    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.

    cisa.gov
  • CVE.orgCVE-2025-22224

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2025-22224

    30-day exploitation probability 1.6%

    first.org
  • NIST NVDCVE-2025-22224

    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 ru

    nvd.nist.gov

References

CVE-2025-22224 · ZeroDay Findings