CVE-2025-41252
Sept. 29, 2025, 7:34 p.m.
7.5
High
Description
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.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Vmware |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
CWE-203
Observable Discrepancy
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | vmware | nsx | 9.x | / | / | / | / | / | / | / |
| a | vmware | nsx | 4.2.x | / | / | / | / | / | / | / |
| a | vmware | nsx | 4.1.x | / | / | / | / | / | / | / |
| a | vmware | nsx | 4.0.x | / | / | / | / | / | / | / |
| a | vmware | nsx-t | 3.x | / | / | / | / | / | / | / |
| a | vmware | cloud_foundation | 5.x | / | / | / | / | / | / | / |
| a | vmware | cloud_foundation | 4.5.x | / | / | / | / | / | / | / |
Tags
CVSS Score
CVSS Data - 3.1
- Attack Vector: NETWORK
- Attack Complexity: LOW
- Privileges Required: NONE
- Scope: UNCHANGED
- Confidentiality Impact: HIGH
- Integrity Impact: NONE
- Availability Impact: NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Timeline
Published: Sept. 29, 2025, 7:15 p.m.
Last Modified: Sept. 29, 2025, 7:34 p.m.
Last Modified: Sept. 29, 2025, 7:34 p.m.
Status : Awaiting Analysis
CVE has been marked for Analysis. Normally once in this state the CVE will be analyzed by NVD staff within 24 hours.
More infoSource
security@vmware.com
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.