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Back to active CVEs
Critical · CVSS 9.3CVE-2025-41237

VMCI integer-underflow vulnerabilityCVE-2025-41237

Answer in brief

CVE-2025-41237 records a Critical severity (CVSS 9.3) vulnerability in VMCI integer-underflow vulnerability. The current sources do not mark it as known exploited. The current feed maps VMware/Cloud Foundation (generic), VMware/ESXi (generic), VMware/Fusion (generic), VMware/Telco Cloud Infrastructure (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 15, 2025Updated Nov 3, 2026Source checked Nov 3, 2026First seen by HOL Nov 3, 2026Material review Nov 3, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.3
Exploitation
Not marked as known exploited
Affected software
7 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 9.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps VMware/Cloud Foundation (generic), VMware/ESXi (generic), VMware/Fusion (generic), VMware/Telco Cloud Infrastructure (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
VMware/Cloud Foundationgeneric9.0.0.0 5.x 4.5.xNot reported
VMware/ESXigeneric>=8.0 <ESXi80U3f-24784735 || >=8.0 <ESXi80U2e-24789317 || >=7.0 <ESXi70U3w-24784741ESXi80U3f-24784735, ESXi80U2e-24789317, ESXi70U3w-24784741
VMware/Fusiongeneric>=13.x <13.6.413.6.4
VMware/Telco Cloud Infrastructuregeneric3.x 2.xNot reported
VMware/Telco Cloud Platformgeneric5.x 4.x 3.x 2.xNot reported
VMware/vSphere Foundationgeneric9.0.0.0Not reported
VMware/Workstationgeneric>=17.x <17.6.417.6.4

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for VMware/Cloud Foundation, VMware/ESXi, VMware/Fusion.
  2. 2Review the reported fix. Update VMware/ESXi to ESXi80U3f-24784735; VMware/Fusion to 13.6.4; VMware/Workstation to 17.6.4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jul 15, 2025

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 3, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 3, 2026

Sources and claim methodology

  • Source referencesupport.broadcom.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Memory Corruption
EPSS
Not reported
CWE IDs
CWE-787
Source
CVE List V5
Source checked
Nov 3, 2026
References
1 linked source
Open source record