Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
History

Wed, 22 Apr 2026 16:15:00 +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:*:*:*:*:esr:*:*:*
Vendors & Products Mozilla thunderbird

Wed, 22 Apr 2026 12:15:00 +0000


Wed, 22 Apr 2026 00:00:00 +0000

Type Values Removed Values Added
Description Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10. Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Weaknesses CWE-119
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'}

ssvc

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


Tue, 21 Apr 2026 18:00:00 +0000

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

Tue, 21 Apr 2026 13:15:00 +0000

Type Values Removed Values Added
Description Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.
Title Incorrect boundary conditions in the WebRTC component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2026-04-21T12:40:49.079Z

Updated: 2026-04-21T23:34:44.029Z

Reserved: 2026-04-21T12:40:48.727Z

Link: CVE-2026-6752

cve-icon Vulnrichment

Updated: 2026-04-21T19:01:46.552Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-21T13:16:21.250

Modified: 2026-04-22T16:08:41.750

Link: CVE-2026-6752

cve-icon Redhat

Severity : Important

Publid Date: 2026-04-21T12:40:49Z

Links: CVE-2026-6752 - Bugzilla