Incorrect boundary conditions in the Networking: JAR component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
History

Sat, 28 Feb 2026 04:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119

Wed, 25 Feb 2026 16:00:00 +0000

Type Values Removed Values Added
Weaknesses NVD-CWE-noinfo
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:*:*:*
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Wed, 25 Feb 2026 12:00:00 +0000

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

Wed, 25 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

threat_severity

Moderate


Tue, 24 Feb 2026 18:00:00 +0000

Type Values Removed Values Added
Description Incorrect boundary conditions in the Networking: JAR component. This vulnerability affects Firefox < 148 and Firefox ESR < 140.8. Incorrect boundary conditions in the Networking: JAR component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
References

Tue, 24 Feb 2026 14:00:00 +0000

Type Values Removed Values Added
Description Incorrect boundary conditions in the Networking: JAR component. This vulnerability affects Firefox < 148 and Firefox ESR < 140.8.
Title Incorrect boundary conditions in the Networking: JAR component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2026-02-24T13:33:14.195Z

Updated: 2026-02-28T03:16:09.978Z

Reserved: 2026-02-19T15:06:08.909Z

Link: CVE-2026-2779

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2026-02-24T14:16:26.330

Modified: 2026-02-28T04:16:18.877

Link: CVE-2026-2779

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-02-24T13:33:14Z

Links: CVE-2026-2779 - Bugzilla