Vulnerability · Published Sep 29, 2025 · Assigned by vmware

CVE-2025-41251Weak password recovery vulnerability

High 8.1

In plain English

A high-severity security flaw in NSX from vmware. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.8%top 43.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

VMware NSX contains a weak password recovery mechanism vulnerability. An unauthenticated malicious actor may exploit this to enumerate valid usernames, potentially enabling brute-force attacks. Impact: Username enumeration → credential brute force risk. Attack Vector: Remote, unauthenticated. Severity: Important. CVSSv3: 8.1 (High). Acknowledgments: Reported by the National Security Agency. Affected Products:VMware NSX 9.x.x.x, 4.2.x, 4.1.x, 4.0.x NSX-T 3.x VMware Cloud Foundation (with NSX) 5.x, 4.5.x Fixed Versions: NSX 9.0.1.0; 4.2.2.2/4.2.3.1 http://4.2.2.2/4.2.3.1 ; 4.1.2.7; NSX-T 3.2.4.3; CCF async patch (KB88287). Workarounds: None.

Affected products (as reported)

VendorProductVersions
vmware NSX VMware NSX - 9.x.x.x, 4.2.x, 4.1.x, 4.0.xVMware NSX-T - 3.xVMware Cloud Foundation (with NSX) - 5.x, 4.5.x

Weakness: CWE-640 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References