{"schemaVersion":2,"id":"CVE-2026-109716","aliases":["DEBIAN-CVE-2026-109716"],"status":"published","duplicateOf":null,"title":null,"description":"Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.","dates":{"published":"2026-10-13T12:29:18.629Z","modified":"2026-10-13T18:16:29.770Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":0.00156,"percentile":0.04305,"severity":"low","asOf":"2026-10-15T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-10-14T00:00:00.000Z","score":0.00156,"percentile":0.04298},{"date":"2026-10-15T00:00:00.000Z","score":0.00156,"percentile":0.04305}],"last30":[{"date":"2026-10-14T00:00:00.000Z","score":0.00156,"percentile":0.04298},{"date":"2026-10-15T00:00:00.000Z","score":0.00156,"percentile":0.04305}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"ttp":{"capecs":[],"techniques":[],"countermeasures":[],"countermeasuresByTactic":[]},"affected":[{"vendor":"debian","product":"firefox-esr","name":"firefox-esr","label":"firefox-esr","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/firefox-esr","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 153.5.0esr-1~deb12u1","noFixRecorded":false,"fixedIn":null},{"text":"< 153.5.0esr-1~deb13u1","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 153.5.0esr-1~deb12u1 | < 153.5.0esr-1~deb13u1","eol":null},{"vendor":"debian","product":"thunderbird","name":"thunderbird","label":"thunderbird","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/thunderbird","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2073269","label":"bugzilla.mozilla.org/show_bug.cgi?id=2073269","hostname":"bugzilla.mozilla.org","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-106/","label":"www.mozilla.org/security/advisories/mfsa2026-106/","hostname":"www.mozilla.org","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-107/","label":"www.mozilla.org/security/advisories/mfsa2026-107/","hostname":"www.mozilla.org","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-108/","label":"www.mozilla.org/security/advisories/mfsa2026-108/","hostname":"www.mozilla.org","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-109/","label":"www.mozilla.org/security/advisories/mfsa2026-109/","hostname":"www.mozilla.org","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-110/","label":"www.mozilla.org/security/advisories/mfsa2026-110/","hostname":"www.mozilla.org","tags":[]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-109716","label":"security-tracker.debian.org/tracker/CVE-2026-109716","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["OPENSUSE-SU-2026:12116-1"],"duplicates":[],"related":["OPENSUSE-SU-2026:12116-1"]},"timeline":[{"kind":"published","date":"2026-10-13T12:29:18.629Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-13T18:16:29.770Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-16T00:41:28.895Z","stale":false,"partial":false}}