cbcvebase.
CVE-2026-109783
published 2026-10-13

CVE-2026-109783: Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5.

PriorityP426
EPSS
0.16%
4.4th percentile
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5.

Affected

2 ranges
VendorProductVersion rangeFixed in
mozillafirefox_esr< Firefox ESR 153.5Firefox ESR 153.5
mozillathunderbird< Thunderbird 153.5Thunderbird 153.5
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