CVE-2025-9181

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-9181
Uninitialized memory in the JavaScript Engine component. This vulnerability affects Firefox < 142, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1977130 Issue Tracking Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-64/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-66/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-67/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-70/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-71/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-72/ Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
History

21 Aug 2025, 18:37

Type Values Removed Values Added
CPE cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
References () https://bugzilla.mozilla.org/show_bug.cgi?id=1977130 - () https://bugzilla.mozilla.org/show_bug.cgi?id=1977130 - Issue Tracking, Permissions Required
References () https://www.mozilla.org/security/advisories/mfsa2025-64/ - () https://www.mozilla.org/security/advisories/mfsa2025-64/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2025-66/ - () https://www.mozilla.org/security/advisories/mfsa2025-66/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2025-67/ - () https://www.mozilla.org/security/advisories/mfsa2025-67/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2025-70/ - () https://www.mozilla.org/security/advisories/mfsa2025-70/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2025-71/ - () https://www.mozilla.org/security/advisories/mfsa2025-71/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2025-72/ - () https://www.mozilla.org/security/advisories/mfsa2025-72/ - Vendor Advisory
First Time Mozilla thunderbird
Mozilla
Mozilla firefox

20 Aug 2025, 16:15

Type Values Removed Values Added
CWE CWE-457
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 6.5

20 Aug 2025, 14:39

Type Values Removed Values Added
Summary
  • (es) Memoria sin inicializar en el componente JavaScript Engine. Esta vulnerabilidad afecta a Firefox &lt; 142, Firefox ESR &lt; 128.14, Firefox ESR &lt; 140.2, Thunderbird &lt; 142, Thunderbird &lt; 128.14 y Thunderbird &lt; 140.2.

19 Aug 2025, 21:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-08-19 21:15

Updated : 2025-08-21 18:37

NVD link : CVE-2025-9181

Mitre link : CVE-2025-9181

CVE.ORG link : CVE-2025-9181

JSON object : View

Products Affected

mozilla

  • firefox
  • thunderbird
CWE
CWE-457

Use of Uninitialized Variable