CVE-2025-41228: VMware ESXi and vCenter Server Reflected Cross Site Scripting (XSS) Vulnerability

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-05-20 · updated 2026-06-17
Weakness: CWE-79

Description

VMware ESXi and vCenter Server contain a reflected cross-site scripting vulnerability due to improper input validation. A malicious actor with network access to the login page of certain ESXi host or vCenter Server URL paths may exploit this issue to steal cookies or redirect to malicious websites.

Affected products

VMware Cloud Foundation: 5.x, 4.5.x
VMware ESXi: from 8.0 before ESXi80U3se-24659227; from 7.0 before ESXi70U3sv-24723868 — fixed in ESXi70U3sv-24723868, ESXi80U3se-24659227
VMware Telco Cloud Infrastructure: 3.x,2.x
VMware Telco Cloud Platform: 5.x, 4.x, 3.x, 2.x
VMware vCenter Server: from 8.0 before 8.0 U3e — fixed in 8.0 U3e

How to fix

Upgrade to a fixed version: VMware ESXi ESXi70U3sv-24723868, ESXi80U3se-24659227; VMware vCenter Server 8.0 U3e. Check the vendor advisory for mitigations.

References

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/25717

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