7.5

CVE-2026-12329

Memory safety bug fixed in Thunderbird ESR 140.12

Memory safety bug fixed in Thunderbird ESR 140.12. This vulnerability was fixed in Firefox ESR 140.12 and Thunderbird 140.12.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
MozillaFirefox SwEditionesr Version >= 140.0 < 140.12.0
MozillaThunderbird SwEditionesr Version >= 140.0 < 140.12.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.33% 0.245
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 7.5 1.6 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://www.mozilla.org/security/advisories/mfsa2026-58/
Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=2044738
Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-61/
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2489214
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12329.json
https://access.redhat.com/errata/RHSA-2026:27717
https://access.redhat.com/errata/RHSA-2026:27733
https://access.redhat.com/errata/RHSA-2026:27734
https://access.redhat.com/errata/RHSA-2026:29940
https://access.redhat.com/errata/RHSA-2026:30846
https://access.redhat.com/errata/RHSA-2026:33445
https://access.redhat.com/errata/RHSA-2026:36100
https://access.redhat.com/errata/RHSA-2026:36101
https://access.redhat.com/errata/RHSA-2026:36102
https://access.redhat.com/errata/RHSA-2026:36103
https://access.redhat.com/security/cve/CVE-2026-12329
https://access.redhat.com/errata/RHSA-2026:37210