PT-2026-111437 · Mozilla · Firefox+1

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CVE-2026-109716

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Published

2026-10-13

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Updated

2026-10-13

None

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Name of the Vulnerable Software and Affected Versions Firefox versions prior to 158 Firefox ESR versions prior to 115.43 Firefox ESR versions prior to 153.5 Thunderbird versions prior to 158 Thunderbird versions prior to 153.5
Description Incorrect boundary conditions exist within the JavaScript Engine component.
Recommendations Update Firefox to version 158. Update Firefox ESR to version 115.43. Update Firefox ESR to version 153.5. Update Thunderbird to version 158. Update Thunderbird to version 153.5.
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Related Identifiers

CVE-2026-109716

Affected Products

Firefox
Thunderbird