Description
Cryptographic issue in the Security Block-lists, Allow-lists, and other State component. This vulnerability was fixed in Firefox 158.0.1, Firefox ESR 153.5.1, Firefox ESR 115.43.1, Thunderbird 158.0.1, Thunderbird 153.5.1, and Firefox 158.0.2.
References9
- bugzilla.mozilla.org/show_bug.cgi?id=2084311
- www.mozilla.org/security/advisories/mfsa2026-111/
- www.mozilla.org/security/advisories/mfsa2026-112/
- www.mozilla.org/security/advisories/mfsa2026-113/
- www.mozilla.org/security/advisories/mfsa2026-114/
- www.mozilla.org/security/advisories/mfsa2026-115/
- www.mozilla.org/security/advisories/mfsa2026-116/
- www.openwall.com/lists/oss-security/2026/10/20/30
- lists.debian.org/debian-lts-announce/2026/10/msg00041.html
Metrics
- CVSS 3.1
-
5.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 40 · as of 9 November 2026
- CWE
- CWE-295
Could this be exploited in your environment?
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