CVE-2026-117961: Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and…

PriorityP427

EPSS

0.18%

7.7th percentile

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.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
mozilla	firefox	< Firefox 159	Firefox 159
mozilla	firefox_esr	< Firefox ESR 153.6	Firefox ESR 153.6
mozilla	thunderbird	< Thunderbird 153.6	Thunderbird 153.6
mozilla	thunderbird	< Thunderbird 159	Thunderbird 159

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