{"schema":"threatline.record/2","record":{"id":"CVE-2026-110249","aliases":[],"summary":"Denial-of-service in the Exchange email component","details":"A malicious, compromised, or MITM-controlled Exchange server can return a single well-formed SOAP response containing an element with enough attributes to keep Thunderbird's main thread CPU-bound for seconds to hours. This vulnerability was fixed in Thunderbird 158 and Thunderbird 153.5.","categories":["Unclassified"],"product":"Thunderbird","vendor":"Mozilla","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-110249","source_modified_at":"2026-10-21T17:25:10.583Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Thunderbird","vendor":"Mozilla","versions":[{"status":"unaffected","version":"153.5","lessThanOrEqual":"153.*","versionType":"rpm"},{"status":"unaffected","version":"158","lessThanOrEqual":"*","versionType":"rpm"}],"defaultStatus":null}],"fixed_versions":[],"cvss":8.6,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00153,"percentile":0.04118,"score_date":"2026-10-23"},"published_at":"2026-10-13T18:08:38.179Z","modified_at":"2026-10-21T17:25:10.583Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-110249","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-21T17:25:10.583Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-110249","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=2077826"},{"source":"CVE List","url":"https://www.mozilla.org/security/advisories/mfsa2026-109/"},{"source":"CVE List","url":"https://www.mozilla.org/security/advisories/mfsa2026-110/"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-10-20T17:01:59.034534Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-21T17:25:10.583Z","content_hash":"d716044cc1da6923a28efe5e686b454270524beac89dcd5ca8063e049456feec"}}