VMware Cloud Foundation Virtual Machine Communication Interface out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in VMware Cloud Foundation, vSphere Foundation, ESXi, Workstation, Fusion, Telco Cloud Platform and Telco Cloud Infrastructure. Affected by this vulnerability is an unknown functionality of the component Virtual Machine Communication Interface. Performing a manipulation results in out-of-bounds write. This vulnerability is reported as CVE-2025-41237. The attack requires a local approach. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in VMware Cloud Foundation, vSphere Foundation, ESXi, Workstation, Fusion, Telco Cloud Platform and Telco Cloud Infrastructure. It has been classified as critical. This affects some unknown functionality of the component Virtual Machine Communication Interface. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at support.broadcom.com. This vulnerability is uniquely identified as CVE-2025-41237 since 04/16/2025. The exploitability is told to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/17/2025).

The vulnerability scanner Nessus provides a plugin with the ID 242168 (VMware ESXi 7.x < 7.0 Update 3w / 8.x < 8.0 Update 2e / 8.0 Update 3 < 8.0 Update 3f (VMSA-2025-0013)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (242168) and CERT Bund (WID-SEC-2025-1576). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • VMware vSphere
  • VMware Tools
  • VMware ESXi
  • VMware Workstation
  • VMware Fusion
  • VMware Cloud Foundation

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.3
CNA Vector (vmware): 🔒

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 242168
Nessus Name: VMware ESXi 7.x < 7.0 Update 3w / 8.x < 8.0 Update 2e / 8.0 Update 3 < 8.0 Update 3f (VMSA-2025-0013)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/16/2025 CVE reserved
07/15/2025 +90 days Advisory disclosed
07/15/2025 +0 days VulDB entry created
07/17/2025 +2 days VulDB entry last update

Sourcesinfo

Vendor: vmware.com

Advisory: support.broadcom.com
Status: Confirmed

CVE: CVE-2025-41237 (🔒)
GCVE (CVE): GCVE-0-2025-41237
GCVE (VulDB): GCVE-100-316437
CERT Bund: WID-SEC-2025-1576 - VMware Produkte: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20060413

Entryinfo

Created: 07/15/2025 21:02
Updated: 07/17/2025 14:01
Changes: 07/15/2025 21:02 (63), 07/17/2025 03:04 (2), 07/17/2025 14:01 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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