CVE-2026-12324

Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

CVSS v3 7.3 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=2038444	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-57/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-58/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-60/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-61/	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:thunderbird:::::esr:::*
	cpe:2.3:a:mozilla:thunderbird:::::-:::*

History

26 Oct 2026, 12:10

Type	Values Removed	Values Added
Summary		(es) Condiciones de contorno incorrectas en el componente Graphics: CanvasWebGL. Esta vulnerabilidad se corrigió en Firefox 152, Firefox ESR 140.12, Thunderbird 152 y Thunderbird 140.12.

Information

Published : 2026-06-16 13:16

Updated : 2026-10-26 12:10

NVD link : CVE-2026-12324

Mitre link : CVE-2026-12324

CVE.ORG link : CVE-2026-12324

JSON object : View

Products Affected

mozilla

firefox
thunderbird

CWE

CWE-703

Improper Check or Handling of Exceptional Conditions

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