CVE-2025-41252: Username enumeration vulnerability
Description: VMware NSX contains a username enumeration vulnerability. An unauthenticated malicious actor may exploit this to enumerate valid usernames, potentially leading to unauthorized access attempts.
Impact: Username enumeration → facilitates unauthorized access.
Attack Vector: Remote, unauthenticated.
Severity: Important.
CVSSv3: 7.5 (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 Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-41252?
CVE-2025-41252 is categorized as a medium severity vulnerability due to its potential to facilitate unauthorized access.
How does CVE-2025-41252 affect users?
CVE-2025-41252 allows unauthenticated attackers to enumerate valid usernames, increasing the risk of unauthorized access attempts.
How do I fix CVE-2025-41252?
To mitigate CVE-2025-41252, update VMware NSX, NSX-T, and VMware Cloud Foundation to the latest versions where this vulnerability is resolved.
What are the affected versions for CVE-2025-41252?
CVE-2025-41252 affects VMware NSX versions 9.x.x.x, 4.2.x, 4.1.x, 4.0.x, NSX-T version 3.x, and VMware Cloud Foundation versions 5.x and 4.5.x.
What kind of attack vector is associated with CVE-2025-41252?
The attack vector for CVE-2025-41252 is primarily through username enumeration exploits by malicious actors.