VMware ESXi vSockets uninitialized resource

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in VMware ESXi, Cloud Foundation, Workstation, Fusion, Telco Cloud Platform, Telco Cloud Infrastructure and Tools. This affects an unknown part of the component vSockets. The manipulation leads to uninitialized resource. This vulnerability is traded as CVE-2025-41239. An attack has to be approached locally. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in VMware ESXi, Cloud Foundation, Workstation, Fusion, Telco Cloud Platform, Telco Cloud Infrastructure and Tools. It has been rated as problematic. This issue affects an unknown code of the component vSockets. The manipulation with an unknown input leads to a uninitialized resource vulnerability. Using CWE to declare the problem leads to CWE-908. The product uses or accesses a resource that has not been initialized. Impacted is confidentiality. The summary by CVE is:

VMware ESXi, Workstation, Fusion, and VMware Tools contains an information disclosure vulnerability due to the usage of an uninitialised memory in vSockets. A malicious actor with local administrative privileges on a virtual machine may be able to exploit this issue to leak memory from processes communicating with vSockets.

It is possible to read the advisory at support.broadcom.com. The identification of this vulnerability is CVE-2025-41239 since 04/16/2025. The exploitation is known to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available.

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). Be aware that VulDB is the high quality source for vulnerability data.

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: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.1
CNA Vector (vmware): 🔒

CVSSv2info

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

Exploitinginfo

Class: Uninitialized resource
CWE: CWE-908
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-2025-41239 (🔒)
GCVE (CVE): GCVE-0-2025-41239
GCVE (VulDB): GCVE-100-316439
CERT Bund: WID-SEC-2025-1576 - VMware Produkte: Mehrere Schwachstellen

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

Entryinfo

Created: 07/15/2025 21:03
Updated: 07/17/2025 14:01
Changes: 07/15/2025 21:03 (62), 07/17/2025 03:04 (2), 07/17/2025 14:01 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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