Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

Vendors Products
Mozilla
  • Firefox
  • Firefox Esr
  • Thunderbird

Configuration 1 [-]

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:*:*:*:*:-:*:*:*

No data.

References
Link Providers
https://bugzilla.mozilla.org/show_bug.cgi?id=1996473 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-14322 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-14322 cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-92/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-93/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-94/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-94/#CVE-2025-14322 cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-95/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-96/ cve-icon cve-icon
History

Wed, 10 Dec 2025 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla thunderbird
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
Vendors & Products Mozilla thunderbird

Wed, 10 Dec 2025 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Mozilla firefox Esr
Vendors & Products Mozilla
Mozilla firefox
Mozilla firefox Esr

Wed, 10 Dec 2025 14:45:00 +0000

Type Values Removed Values Added
Description Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, and Firefox ESR < 140.6. Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.
References

Wed, 10 Dec 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Important

Tue, 09 Dec 2025 16:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-754
Metrics cvssV3_1

{'score': 8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 09 Dec 2025 13:45:00 +0000

Type Values Removed Values Added
Description Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, and Firefox ESR < 140.6.
Title Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component
References
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2025-12-09T13:37:55.159Z

Updated: 2025-12-10T14:32:19.512Z

Reserved: 2025-12-09T13:37:54.554Z

Link: CVE-2025-14322

cve-icon Vulnrichment

Updated: 2025-12-09T15:37:07.838Z

cve-icon NVD

Status : Analyzed

Published: 2025-12-09T16:17:39.523

Modified: 2025-12-10T20:42:07.897

Link: CVE-2025-14322

cve-icon Redhat

Severity : Important

Publid Date: 2025-12-09T13:37:55Z

Links: CVE-2025-14322 - Bugzilla