CVE-2025-11714

Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.

• CWE-119
• CWE-125
• CWE-787

• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1973699%2C1989945%2C1990970%2C1991040%2C1992113Broken Link, Issue Tracking
• https://www.mozilla.org/security/advisories/mfsa2025-81/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2025-82/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2025-83/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2025-84/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2025-85/Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2025/10/msg00015.html
• https://lists.debian.org/debian-lts-announce/2025/10/msg00031.html

Published

Oct 14, 2025

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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