CVE-2025-6432

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-6432
When Multi-Account Containers was enabled, DNS requests could have bypassed a SOCKS proxy when the domain name was invalid or the SOCKS proxy was not responding. This vulnerability affects Firefox < 140 and Thunderbird < 140.

8.6 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1943804 Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-51/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-54/
Configurations

Configuration 1 (hide)

cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
History

14 Jul 2025, 19:15

Type Values Removed Values Added
References
  • () https://www.mozilla.org/security/advisories/mfsa2025-54/ -
Summary (en) When Multi-Account Containers was enabled, DNS requests could have bypassed a SOCKS proxy when the domain name was invalid or the SOCKS proxy was not responding. This vulnerability affects Firefox < 140. (en) When Multi-Account Containers was enabled, DNS requests could have bypassed a SOCKS proxy when the domain name was invalid or the SOCKS proxy was not responding. This vulnerability affects Firefox < 140 and Thunderbird < 140.

03 Jul 2025, 16:04

Type Values Removed Values Added
CPE cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
References () https://bugzilla.mozilla.org/show_bug.cgi?id=1943804 - () https://bugzilla.mozilla.org/show_bug.cgi?id=1943804 - Permissions Required
References () https://www.mozilla.org/security/advisories/mfsa2025-51/ - () https://www.mozilla.org/security/advisories/mfsa2025-51/ - Vendor Advisory
First Time Mozilla
Mozilla firefox

25 Jun 2025, 15:15

Type Values Removed Values Added
CWE CWE-200
Summary
  • (es) Al habilitar los Contenedores Multicuenta, las solicitudes DNS podían eludir un proxy SOCKS cuando el nombre de dominio no era válido o el proxy SOCKS no respondía. Esta vulnerabilidad afecta a Firefox anterior a la versión 140.
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 8.6

24 Jun 2025, 13:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-06-24 13:15

Updated : 2025-07-14 19:15

NVD link : CVE-2025-6432

Mitre link : CVE-2025-6432

CVE.ORG link : CVE-2025-6432

JSON object : View

Products Affected

mozilla

  • firefox
CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor