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CVE-2025-22224

VMware ESXi and Workstation TOCTOU Race Condition

9.3 CRITICALActively exploited (CISA KEV)EPSS 1.56%
  1. Published4 Mar 2025
  2. Added to CISA KEV4 Mar 2025
  3. Remediation due25 Mar 2025
Actively exploited (CISA KEV)

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.

Added to KEV: 4 Mar 2025Federal remediation due: 25 Mar 2025

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.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

VMware Cloud Foundationall versions
VMware Telco Cloud Infrastructure2.2 · 2.5 · 2.7 · 3.0
VMware Telco Cloud Platform2.0 · 2.5 · 2.7 · 3.0
VMware Workstation≥ 17.0 < 17.6.3
VMware Esxi7.0 · 8.0

Remediation

Fixed in
VMware Workstation≥ 17.6.3

References

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Frequently asked

Is CVE-2025-22224 being actively exploited?

Yes. CVE-2025-22224 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 4 Mar 2025.

How severe is CVE-2025-22224?

CVE-2025-22224 has a CVSS 3.1 base score of 9.3, rated critical. EPSS estimates a 1.56% probability of exploitation.

Which products are affected by CVE-2025-22224?

Affected products include VMware Cloud Foundation, VMware Telco Cloud Infrastructure, VMware Telco Cloud Platform, VMware Workstation, VMware Esxi.

How do I fix CVE-2025-22224?

Upgrade affected software to a fixed version, for example VMware Workstation 17.6.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-22224 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.