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CVE-2025-41239

vSockets information-disclosure vulnerability

No known exploitation. EPSS puts it in the 88th percentile. Fixed versions are out.

CVSS 3.17.1HighEPSS percentile88th3.2% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix5 products5 fixed builds listed below
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OpenVAS · 4 checks

e.g. OID 1.3.6.1.4.1.25623.1.0.119067

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Published Updated Sources: CVE.org, NVD, BDU, CSAF

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • VMware ESXiAffected: ≥ 8.0, < ESXi80U3f-24784735Upgrade to: ESXi80U3f-24784735Affected: ≥ 8.0, < ESXi80U2e-24789317Upgrade to: ESXi80U2e-24789317Affected: ≥ 7.0, < ESXi70U3w-24784741Upgrade to: ESXi70U3w-24784741Stated by: CVE record
  • VMware Cloud FoundationAffected: 5.x, 4.5.xUpgrade to: not statedStated by: CVE record
  • VMware WorkstationAffected: ≥ 17.x, < 17.6.4Upgrade to: 17.6.4Stated by: CVE record
  • VMware FusionAffected: ≥ 13.x, < 13.6.4Upgrade to: 13.6.4Stated by: CVE record
  • VMware Telco Cloud PlatformAffected: 5.x, 4.x, 3.x, 2.xUpgrade to: not statedStated by: CVE record

Versions as the sources state them. 9 more products have version data. Full version matrix after sign-in

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

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.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS88th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

3.2% chance of exploitation activity in the next 30 days, which ranks it in the 88th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

6 events over 345 days, from the signal feeds we watch.

  1. OpenVAS check added
  2. Patch availablepublished, weakness classified, att&ck mapped, record updated

Affected products

Technical detail

CVSS 3.1 vector

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CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Scored 7.1 by NVD.

How it is reached

  • Attack Vector LocalRequires local access to the vulnerable system (e.g. local login, malicious file)
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required NoneNo authentication required — anyone can exploit this
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope ChangedThe exploit can affect other components (e.g. sandbox escape, host compromise from VM)

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity NoneNo integrity impact
  • Availability NoneNo availability impact

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

And 16 more references. See all after sign-in

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