Vulnerability Intelligence Report
VMCI integer-underflow vulnerability
CVE-2025-41237
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.
No Active Exploit Signals
CVSS Base Score
9.3
CRITICAL
Exploitability:2.6
Impact Score:6.1
EPSS Probability:0.39%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-787 ↗CWE-787 Out-of-bounds Write
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| VMware | Cloud Foundation | 9.0.0.0, 5.x, 4.5.x (affected) |
| VMware | vSphere Foundation | 9.0.0.0 (affected) |
| VMware | ESXi | 8.0 < ESXi80U3f-24784735 (affected), 8.0 < ESXi80U2e-24789317 (affected), 7.0 < ESXi70U3w-24784741 (affected) |
| VMware | Workstation | 17.x < 17.6.4 (affected) |
| VMware | Fusion | 13.x < 13.6.4 (affected) |
| VMware | Telco Cloud Platform | 5.x, 4.x, 3.x, 2.x (affected) |
| VMware | Telco Cloud Infrastructure | 3.x, 2.x (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.393%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | VMware by Broadcom · Vendor · USA |
| Reserved | 2025-04-16T09:30:17 |
| Published | 2025-07-15T18:34:21 |
| Patch Date | 2025-07-15 |
| Last Updated | 2026-02-26T17:50:39 |
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