CVE-2026-12289

Published: Giu 16, 2026 Last Modified: Giu 16, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,8
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

269

Improper Privilege Management

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Gain Privileges Or Assume Identity
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: Medium
View CWE Details
Application

Firefox by Mozilla

Product Information
Vendor Mozilla
Product Firefox
Version Range Affected
To 115.37.0 (exclusive)
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Thunderbird by Mozilla

Product Information
Vendor Mozilla
Product Thunderbird
Version Range Affected
To 152.0.0 (exclusive)
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Thunderbird by Mozilla

Product Information
Vendor Mozilla
Product Thunderbird
Version Range Affected
From 140.0 (inclusive)
To 140.12.0 (exclusive)
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Firefox by Mozilla

Product Information
Vendor Mozilla
Product Firefox
Version Range Affected
To 152.0 (exclusive)
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Firefox by Mozilla

Product Information
Vendor Mozilla
Product Firefox
Version Range Affected
From 140.0 (inclusive)
To 140.12.0 (exclusive)
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://bugzilla.mozilla.org/show_bug.cgi?id=2023443
https://bugzilla.mozilla.org/show_bug.cgi?id=2023443
https://www.mozilla.org/security/advisories/mfsa2026-57/
https://www.mozilla.org/security/advisories/mfsa2026-57/
https://www.mozilla.org/security/advisories/mfsa2026-58/
https://www.mozilla.org/security/advisories/mfsa2026-58/
https://www.mozilla.org/security/advisories/mfsa2026-59/
https://www.mozilla.org/security/advisories/mfsa2026-59/
https://www.mozilla.org/security/advisories/mfsa2026-60/
https://www.mozilla.org/security/advisories/mfsa2026-60/
https://www.mozilla.org/security/advisories/mfsa2026-61/
https://www.mozilla.org/security/advisories/mfsa2026-61/