cbcvebase.
CVE-2026-113401
published 2026-10-20

CVE-2026-113401: Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.

PriorityP428medium6.5CVSS 3.1
AVNACLPRNUIRSUCNINAH
EPSS
0.35%
28.3th percentile
Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.

Affected

2 ranges
VendorProductVersion rangeFixed in
mozillafirefox< Firefox 158.0.1Firefox 158.0.1
mozillathunderbird< Thunderbird 158.0.1Thunderbird 158.0.1
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.