Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
History

Tue, 16 Jun 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 16 Jun 2026 16:45:00 +0000

Type Values Removed Values Added
Description Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12. Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Title Memory safety bug fixed in Firefox 152 Memory safety bug fixed in Thunderbird 152
References

Tue, 16 Jun 2026 15:15:00 +0000

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

Tue, 16 Jun 2026 13:15:00 +0000

Type Values Removed Values Added
Description Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12.
Title Memory safety bug fixed in Firefox 152
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-06-16T17:37:47.283Z

Reserved: 2026-06-15T15:08:13.015Z

Link: CVE-2026-12306

cve-icon Vulnrichment

Updated: 2026-06-16T17:36:20.772Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-06-16T13:16:30.833

Modified: 2026-06-16T19:16:31.780

Link: CVE-2026-12306

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-16T15:00:06Z