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Fencer Vulns
high 8.2

CVE-2025-22225 kev+ ransomware in the critical feed json

VMware ESXi contains an arbitrary write vulnerability.

published 2025-03-04 20 mo ago modified 2026-08-04 3 mo ago also EUVD-2025-7604

cvss
8.2
version 3.1, CNA
cisa kev
Exploited
added 2025-03-04, used in ransomware
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits
0
none known

Summary

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.

Patch / fix

cisa 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.

  • n/a VMware ESXi ESXi70U3s-24585291, ESXi80U2d-24585300, ESXi80U3d-24585383

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-25-077-02 updated cvss 8.2

Rockwell Automation Lifecycle Services with VMware

  • Rockwell Automation Endpoint Protection Service with RA Proxy & VMware only Rockwell Automation Engineered and Integrated Solutions with VMware Rockwell Automation Industrial Data Center (IDC) with VMware >=Generations_1, <=4 Rockwell Automation Threat Detection Managed Services (TDMS) with VMware Rockwell Automation VersaVirtual Appliance (VVA) with VMware Series_A_and_B
    affected: mitigation “Rockwell Automation will contact impacted users to discuss actions needed for remediation efforts.” support.broadcom.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Timeline

  1. 0-day patched (Project Zero)
  2. CISA SSVC: exploitation active
  3. Added to CISA KEV
  4. Published
  5. CISA patch deadline

Known exploited

Added
20 mo ago
Patch by
2025-03-25 (19 mo ago)
Ransomware
Known to be used in ransomware campaigns
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.
Vendor, product
VMware, ESXi
CISA name
VMware ESXi Arbitrary Write Vulnerability

Zero-day

Detected in real attacks while still unknown to the vendor and the public, per Google Project Zero's 0day In-the-Wild tracker.

Patched
2025-03-04
Details
project zero tracker

ATT&CK techniques

How it is exploited and what it leads to, in MITRE ATT&CK terms.

  • T1068 Exploitation for Privilege Escalation exploitation
  • T1611 Escape to Host primary impact

kev release 2025-07-28, att&ck v16.1. KEV to ATT&CK mappings by the MITRE Center for Threat-Informed Defense (Mappings Explorer, Apache-2.0). © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. Terms of use

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
20 mo ago

Exploit prediction

1.02% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 8.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected products

  • n/a VMware ESXi
  • n/a VMware Cloud Foundation
  • n/a VMware Telco Cloud Platform
  • n/a VMware Telco Cloud Infrastructure

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.