CVE-2025-41251 Weak password recovery vulnerability
Unauthenticated attackers can enumerate valid usernames via weak password recovery, facilitating brute-force attacks on VMware NSX.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-41251?
CVE-2025-41251 is a high-severity vulnerability in vmware NSX, published on 29 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-640
Which versions are affected by CVE-2025-41251?
How do I fix CVE-2025-41251?
No fix has been published for CVE-2025-41251 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-41251 being exploited?
There is no known exploitation of CVE-2025-41251 in the wild and no public exploit code.
Sources
Also known as GHSA-5vpj-22hp-chfg.