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CVE-2025-22225

VMware ESXi Arbitrary Write

8.2 HIGHActively exploited (CISA KEV)Used in ransomwareEPSS 1.02%
  1. Published4 Mar 2025
  2. Added to CISA KEV4 Mar 2025
  3. Remediation due25 Mar 2025
Actively exploited (CISA KEV)

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.

Added to KEV: 4 Mar 2025Federal remediation due: 25 Mar 2025Used in ransomware

Description

VMware ESXi contains an arbitrary write vulnerability. A malicious actor with privileges within the VMX process may trigger an arbitrary kernel write leading to an escape of the sandbox.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredHigh
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:H/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 Esxi7.0 · 8.0

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2025-22225 being actively exploited?

Yes. CVE-2025-22225 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 4 Mar 2025. It has been used in ransomware campaigns.

How severe is CVE-2025-22225?

CVE-2025-22225 has a CVSS 3.1 base score of 8.2, rated high. EPSS estimates a 1.02% probability of exploitation.

Which products are affected by CVE-2025-22225?

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

How do I fix CVE-2025-22225?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-22225 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.

See how prioritisation worksBook a demo

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