Input validation error in VMware ESXi - CVE-2025-41226

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Main Vulnerability Database Vulnerabilities #VU109485

Input validation error in VMware ESXi - CVE-2025-41226

Published: May 20, 2025


Vulnerability identifier: #VU109485
CSH Severity: Medium
CVSS v4: 6.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H]
CVE-ID: CVE-2025-41226
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote guest to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote guest can perform a denial of service attack against other guest VMs with VMware Tools running and guest operations enabled.


Affected software

VMware ESXi
IBM Cloud Pak System

How to mitigate CVE-2025-41226

Install updates from vendor's website.

VMware ESXi - addressed in versions ESXi70U3sv-24723868, ESXi80U3e-24659227
IBM Cloud Pak System - update to 2.3.6.1

External References

Related Security Bulletins