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.
References
Link Providers
https://access.redhat.com/errata/RHSA-2026:0667 cve-icon
https://access.redhat.com/errata/RHSA-2026:0694 cve-icon
https://access.redhat.com/errata/RHSA-2026:0924 cve-icon
https://access.redhat.com/errata/RHSA-2026:1320 cve-icon
https://access.redhat.com/errata/RHSA-2026:1413 cve-icon
https://access.redhat.com/errata/RHSA-2026:1414 cve-icon
https://access.redhat.com/errata/RHSA-2026:1415 cve-icon
https://access.redhat.com/errata/RHSA-2026:1461 cve-icon
https://access.redhat.com/errata/RHSA-2026:1462 cve-icon
https://access.redhat.com/errata/RHSA-2026:1471 cve-icon
https://access.redhat.com/errata/RHSA-2026:1487 cve-icon
https://access.redhat.com/errata/RHSA-2026:2041 cve-icon
https://access.redhat.com/errata/RHSA-2026:2043 cve-icon
https://access.redhat.com/errata/RHSA-2026:2044 cve-icon
https://access.redhat.com/errata/RHSA-2026:2047 cve-icon
https://access.redhat.com/errata/RHSA-2026:2069 cve-icon
https://access.redhat.com/errata/RHSA-2026:2070 cve-icon
https://access.redhat.com/errata/RHSA-2026:2073 cve-icon
https://access.redhat.com/errata/RHSA-2026:2074 cve-icon
https://access.redhat.com/errata/RHSA-2026:2220 cve-icon
https://access.redhat.com/errata/RHSA-2026:2231 cve-icon
https://access.redhat.com/errata/RHSA-2026:2271 cve-icon
https://access.redhat.com/errata/RHSA-2026:2286 cve-icon
https://access.redhat.com/security/cve/CVE-2026-0882 cve-icon
https://bugzilla.mozilla.org/show_bug.cgi?id=1924125 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2428966 cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-0882 cve-icon
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0882.json cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-0882 cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-01/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-02/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-03/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-03/#CVE-2026-0882 cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-04/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-05/ cve-icon cve-icon
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

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2026-01-13T13:30:55.562Z

Updated: 2026-07-15T01:23:46.780Z

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

Link: CVE-2026-0882

cve-icon Vulnrichment

Updated: 2026-06-30T02:43:05.045Z

cve-icon NVD

Status : Modified

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

Modified: 2026-07-15T02:17:59.540

Link: CVE-2026-0882

cve-icon Redhat

Severity : Important

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

Links: CVE-2026-0882 - Bugzilla