CVE-2026-117991
Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thund
CVSS
8.8
Alto
EPSS
0.4%
p33
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Exploit Today
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Publicado: 27 oct 2026 · Última mod.: 5 nov 2026 · CWE-119
0.2%EPSS · 30 días0.4%
2026-10-282026-11-07
Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
- bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=2079686
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-118/
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-120/
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-121/
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-122/
CVECVSSEPSSKEVRExplotTítuloVis.
CVE-2026-1240609.1 CRÍ—
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