CVE-2026-12302

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-12302
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=2034489
https://www.mozilla.org/security/advisories/mfsa2026-57/
https://www.mozilla.org/security/advisories/mfsa2026-58/
https://www.mozilla.org/security/advisories/mfsa2026-59/
https://www.mozilla.org/security/advisories/mfsa2026-60/
https://www.mozilla.org/security/advisories/mfsa2026-61/
Configurations

No configuration.

History

16 Jun 2026, 19:16

Type Values Removed Values Added
CWE CWE-693
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 6.5

16 Jun 2026, 17:16

Type Values Removed Values Added
References
  • () https://www.mozilla.org/security/advisories/mfsa2026-60/ -
  • () https://www.mozilla.org/security/advisories/mfsa2026-61/ -
Summary (en) Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, and Firefox ESR 115.37. (en) Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

16 Jun 2026, 13:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-06-16 13:16

Updated : 2026-06-16 19:16

NVD link : CVE-2026-12302

Mitre link : CVE-2026-12302

CVE.ORG link : CVE-2026-12302

JSON object : View

Products Affected

No product.

CWE
CWE-693

Protection Mechanism Failure