9.6

CVE-2026-100804

Sandbox escape due to use-after-free in the Preferences: Backend component

Sandbox escape due to use-after-free in the Preferences: Backend component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerMozilla
≫
Produkt Thunderbird
Version <= *
Version 157
Status unaffected
HerstellerMozilla
≫
Produkt Firefox
Version <= *
Version 157
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.3% 0.206
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 9.6 2.8 6
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://www.mozilla.org/security/advisories/mfsa2026-97/
https://bugzilla.mozilla.org/show_bug.cgi?id=2058647
https://www.mozilla.org/security/advisories/mfsa2026-101/