{"schema":"threatline.record/2","record":{"id":"CVE-2026-109779","aliases":[],"summary":"Race condition in the Networking: DNS component","details":"Race condition in the Networking: DNS component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.","categories":["Applications & CMS"],"product":"Firefox","vendor":"Mozilla","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109779","source_modified_at":"2026-10-13T18:08:35.924Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Firefox","vendor":"Mozilla","versions":[{"status":"unaffected","version":"158","lessThanOrEqual":"*","versionType":"rpm"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109779","source_modified_at":"2026-10-13T18:08:35.924Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Thunderbird","vendor":"Mozilla","versions":[{"status":"unaffected","version":"158","lessThanOrEqual":"*","versionType":"rpm"}],"defaultStatus":null}],"fixed_versions":[],"cvss":4.2,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00141,"percentile":0.03097,"score_date":"2026-10-23"},"published_at":"2026-10-13T12:29:35.359Z","modified_at":"2026-10-13T18:08:35.924Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-109779","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-13T18:08:35.924Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-109779","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2072048"},{"source":"CVE List","url":"https://www.mozilla.org/security/advisories/mfsa2026-106/"},{"source":"CVE List","url":"https://www.mozilla.org/security/advisories/mfsa2026-109/"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-13T14:53:48.294735Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-13T18:08:35.924Z","content_hash":"204f74439e8862fec01fe92900d7f7eca115fc5c215ec4a93fd5aa80c471928a"}}