CVE-2026-84143
Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of these bugs showed evidence of me
CVSS
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Sin CVSS
EPSS
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KEV
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Exploit Today
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0-100
Publicado: 1 sept 2026 · Última mod.: 1 sept 2026
Sin historial EPSS suficiente todavía.
Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
- bugzilla.mozilla.orghttps://bugzilla.mozilla.org/buglist.cgi?bug_id=2048793%2C2054645%2C2057114%2C2059109%2C2061287
- bugzilla.mozilla.orghttps://bugzilla.mozilla.org/buglist.cgi?bug_id=2054631%2C2054657%2C2055007%2C2055681%2C2057107%2C2058087%2C2058088%2C2058090%2C2058095%2C2058101%2C2059183%2C2059185%2C2061301%2C2061325
- bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=2057108
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-82/
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-84/
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-85/
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-86/
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-87/
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-88/
Sin CVEs relacionados por CWE o producto.