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Fencer Vulns
critical 9.3

CVE-2025-41237 json

VMCI integer-underflow vulnerability

published 2025-07-15 15 mo ago modified 2026-11-03 5 d ago also EUVD-2025-21543

cvss
9.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

VMware ESXi, Workstation, and Fusion contain an integer-underflow in VMCI (Virtual Machine Communication Interface) 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. On ESXi, the exploitation is contained within the VMX sandbox whereas, on Workstation and Fusion, this may lead to code execution on the machine where Workstation or Fusion is installed.

Patch / fix

  • VMware ESXi ESXi70U3w-24784741, ESXi80U2e-24789317, ESXi80U3f-24784735
  • VMware Workstation 17.6.4
  • VMware Fusion 13.6.4

Vendor advisories

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

cisa ICSA-25-212-02 updated cvss 9.3

Rockwell Automation Lifecycle Services with VMware

  • Rockwell Automation Endpoint Protection Service with Rockwell Automation 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 A, B
    affected: mitigation “Rockwell recommends users without Rockwell Automation managed services contract to refer to Broadcom's advisories below:” 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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
15 mo ago

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

  • VMware Cloud Foundation
  • VMware vSphere Foundation
  • VMware ESXi
  • VMware Workstation
  • VMware Fusion
  • VMware Telco Cloud Platform
  • VMware Telco Cloud Infrastructure

Classification

Weakness

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.