{"id":"CVE-2026-113401","title":"Denial-of-service in the PDF Viewer component","summary":"Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cvssSource":"adp","vendor":"Mozilla","product":"Firefox","affected":["Firefox","Thunderbird"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-20T14:25:14.357154Z"},"published":"2026-10-20","updated":"2026-10-20","sourceUpdated":"2026-10-20T19:14:54.271Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-113401","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2073714"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-111/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-114/"}],"tags":["cve.org"],"ingestedAt":"2026-10-20T14:08:00.581Z","slug":"CVE-2026-113401","body":"## Overview\n\nDenial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.\n\n## Affected\n\n- `Firefox`\n- `Thunderbird`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":225929,"id":"CVE-2026-113401","ts":1792509031777,"field":"cvss","old":null,"new":"6.5"},{"seq":225928,"id":"CVE-2026-113401","ts":1792509031777,"field":"severity","old":"none","new":"medium"}]}