CVE-2025-41239

Process-memory disclosure via uninitialized VMCI memory

Published Jul 15, 2025 · Updated Jul 15, 2025

Information disclosure in VMware vSockets allows local users to read process memory from an administratively controlled guest VM. VMCI exposes memory that was not initialized before vSockets accesses and returns it across the guest-host communication boundary. Exploitation requires local administrative privileges in the guest; the reported consequence is confidentiality loss without integrity or availability impact.

CVSS severity7.1
High
EPSS probability2.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in VMware vSockets allows local users to read process memory from an administratively controlled guest VM. VMCI exposes memory that was not initialized before vSockets accesses and returns it across the guest-host communication boundary. Exploitation requires local administrative privileges in the guest; the reported consequence is confidentiality loss without integrity or availability impact.

The record

CVE
CVE-2025-41239
Published
Jul 15, 2025
Updated
Jul 15, 2025
Vendor
VMware
Product
VMware Tools
Classifications
CWE-908, T1005
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jul 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=12.x.x, 11.x.x, <12.5.3
  2. Affected versionversion=13.x.x <13.0.1.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

VMware · VMware Toolsversion=12.x.x, 11.x.x, <12.5.3; version=13.x.x <13.0.1.0
VMware · VMware Workstationversion=17.x <17.6.4
VMware · VMware Fusionversion=13.x <13.6.4
VMware · VMware Telco Cloud Platformversion=5.x, 4.x, 3.x, 2.x
VMware · VMware Telco Cloud Infrastructureversion=3.x, 2.x
VMware · VMware Cloud Foundationversion=5.x, 4.5.x
VMware · VMware ESXiversion=7.0 <ESXi70U3w-24784741; version=8.0 <ESXi80U2e-24789317; version=8.0 <ESXi80U3f-24784735

Published CVSS scores

6.2VMwareCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.1VMwareCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-908Use of Uninitialized Resource
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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