Use-after-free in the IPC component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4439-1 firefox-esr security update
Debian DLA Debian DLA DLA-4442-1 thunderbird security update
Debian DSA Debian DSA DSA-6101-1 firefox-esr security update
Debian DSA Debian DSA DSA-6103-1 thunderbird security update
Ubuntu USN Ubuntu USN USN-7991-1 Thunderbird vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 13 Apr 2026 14:30:00 +0000

Type Values Removed Values Added
Description Use-after-free in the IPC component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7. Use-after-free in the IPC component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

Thu, 22 Jan 2026 23:00:00 +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:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
Vendors & Products Mozilla thunderbird

Thu, 15 Jan 2026 09:45:00 +0000

Type Values Removed Values Added
Description Use-after-free in the IPC component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, and Firefox ESR < 140.7. Use-after-free in the IPC component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
References

Wed, 14 Jan 2026 11:15:00 +0000

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

Wed, 14 Jan 2026 00:15:00 +0000


Tue, 13 Jan 2026 19:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

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


Tue, 13 Jan 2026 14:00:00 +0000

Type Values Removed Values Added
Description Use-after-free in the IPC component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, and Firefox ESR < 140.7.
Title Use-after-free in the IPC component
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-04-13T13:51:48.764Z

Reserved: 2026-01-13T13:30:55.389Z

Link: CVE-2026-0882

cve-icon Vulnrichment

Updated: 2026-01-13T18:22:23.959Z

cve-icon NVD

Status : Modified

Published: 2026-01-13T14:16:38.750

Modified: 2026-04-13T15:17:17.050

Link: CVE-2026-0882

cve-icon Redhat

Severity : Important

Publid Date: 2026-01-13T13:30:55Z

Links: CVE-2026-0882 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-01-14T11:09:03Z

Weaknesses