HOMEVULNERABILITIESCVE-2025-22225
HIGHCISA KEVIN THE WILD

CVE-2025-22225

Published: March 4, 2025

EPSS:6.04%probability of exploitation in 30 daysPercentile:90.5th

Official Description

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.

NVD Source

CISA KEV Advisory

VMware ESXi Arbitrary Write Vulnerability

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: 2025-03-04Federal patch deadline: 2025-03-25⚠ USED IN RANSOMWARE CAMPAIGNS
Required Action (CISA)

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

Risk Analysis

This arbitrary write vulnerability in VMware ESXi allows an attacker with VMX process privileges to trigger an arbitrary kernel write, leading to a sandbox escape. It is a high-severity flaw and is urgent due to its inclusion in CISA's KEV catalog, confirming active exploitation. The EPSS score of 0.06038 indicates a moderate likelihood of exploitation.

This vulnerability is actively exploited in the wild and is listed in CISA's KEV catalog, confirming its use by attackers.

Recommended Action

Apply available patches and updates for VMware ESXi. Ensure that VMX processes operate with the principle of least privilege to limit potential impact.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2025-22225 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2025-22225 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.

Affected Vendors & Products

Mentioned vendors (from description):
VMware
CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

ACTIVE EXPLOITATIONConfirmed exploitation in the wild
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All References (2)

Quick Facts

CVE IDCVE-2025-22225
SeverityHIGH
CISA KEVYES — Active Exploitation
ExploitIN THE WILD
EPSS (30d)6.04%
PublishedMar 4, 2025

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2025-22225 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
  • !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
  • !Active exploitation confirmed — treat as P1
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.