{"schemaVersion":3,"id":"CVE-2022-46880","aliases":["UBUNTU-CVE-2022-46880","DEBIAN-CVE-2022-46880"],"status":"published","duplicateOf":null,"title":null,"description":"A missing check related to tex units could have led to a use-after-free and potentially exploitable crash.<br />*Note*: This advisory was added on December 13th, 2022 after we better understood the impact of the issue. The fix was included in the original release of Firefox 105. This vulnerability affects Firefox ESR < 102.6, Firefox < 105, and Thunderbird < 102.6.","dates":{"published":"2022-12-22T00:00:00.000Z","modified":"2025-04-15T13:48:52.427Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":7.2,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":7.2,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00671,"percentile":0.51108,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.01799999999999996,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00653},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00671,"percentile":0.51108}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00671,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00671,"percentile":0.51108}]},"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":[{"id":"CWE-416","name":"Use After Free","description":"The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory \"belongs\" to the code that operates on the new pointer.","type":"weakness","status":"Stable","abstraction":"Variant","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/416.html"}],"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":"< 102.6.0esr-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 102.6.0esr-1","eol":null,"hubHref":null},{"vendor":"debian","product":"thunderbird","name":"thunderbird","label":"thunderbird","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/thunderbird","purlType":"deb","versions":[{"text":"< 1:102.6.0-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:102.6.0-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"thunderbird","name":"thunderbird","label":"thunderbird","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/thunderbird","purlType":"deb","versions":[{"text":"< 1:102.7.1+build2-0ubuntu0.18.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 1:102.7.1+build2-0ubuntu0.20.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 1:102.7.1+build2-0ubuntu0.22.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:102.7.1+build2-0ubuntu0.18.04.1 | < 1:102.7.1+build2-0ubuntu0.20.04.1 | < 1:102.7.1+build2-0ubuntu0.22.04.1","eol":null,"hubHref":null},{"vendor":"mozilla","product":"firefox","name":"Firefox","label":"firefox","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < 105","noFixRecorded":false,"fixedIn":null},{"text":"< 105.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < 105 | < 105.0","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"firefox","label":"Firefox","category":"app"}},"hubHref":"/vendor/mozilla/firefox"},{"vendor":"mozilla","product":"firefox_esr","name":"firefox esr","label":"firefox_esr","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < 102.6","noFixRecorded":false,"fixedIn":null},{"text":"< 102.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < 102.6 | < 102.6","eol":null,"hubHref":"/vendor/mozilla/firefox_esr"},{"vendor":"mozilla","product":"thunderbird","name":"Thunderbird","label":"thunderbird","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < 102.6","noFixRecorded":false,"fixedIn":null},{"text":"< 102.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < 102.6 | < 102.6","eol":null,"hubHref":"/vendor/mozilla/thunderbird"}],"affectedCount":6,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2022-52/","label":"www.mozilla.org/security/advisories/mfsa2022-52/","hostname":"www.mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2022-53/","label":"www.mozilla.org/security/advisories/mfsa2022-53/","hostname":"www.mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2022-40/","label":"www.mozilla.org/security/advisories/mfsa2022-40/","hostname":"www.mozilla.org","tags":["Vendor Advisory"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1749292","label":"bugzilla.mozilla.org/show_bug.cgi?id=1749292","hostname":"bugzilla.mozilla.org","tags":["Issue Tracking","Permissions Required"]},{"url":"https://security.gentoo.org/glsa/202305-06","label":"security.gentoo.org/glsa/202305-06","hostname":"security.gentoo.org","tags":["Vendor Advisory"]},{"url":"https://security.gentoo.org/glsa/202305-13","label":"security.gentoo.org/glsa/202305-13","hostname":"security.gentoo.org","tags":["Vendor Advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-46880","label":"ubuntu.com/security/CVE-2022-46880","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2022-53/#CVE-2022-46880","label":"www.mozilla.org/en-US/security/advisories/mfsa2022-53/","hostname":"www.mozilla.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-5824-1","label":"ubuntu.com/security/notices/USN-5824-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-46880","label":"www.cve.org/CVERecord?id=CVE-2022-46880","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2022-46880","label":"security-tracker.debian.org/tracker/CVE-2022-46880","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["DLA-3241-1","DLA-3242-1","DSA-5301-1","DSA-5303-1","MGASA-2022-0475","MGASA-2022-0476","OPENSUSE-SU-2024:12571-1","RHSA-2022:9065","RHSA-2022:9066","RHSA-2022:9067","RHSA-2022:9068","RHSA-2022:9069","RHSA-2022:9070","RHSA-2022:9071","RHSA-2022:9072","RHSA-2022:9074","RHSA-2022:9075","RHSA-2022:9076","RHSA-2022:9077","RHSA-2022:9078","RHSA-2022:9079","RHSA-2022:9080","RHSA-2022:9081","SUSE-SU-2022:4460-1","SUSE-SU-2022:4461-1","SUSE-SU-2022:4462-1","SUSE-SU-2022:4579-1","USN-5824-1"],"duplicates":[],"related":["OPENSUSE-SU-2024:12571-1","SUSE-SU-2022:4460-1","SUSE-SU-2022:4461-1","SUSE-SU-2022:4462-1","SUSE-SU-2022:4579-1","USN-5824-1"]},"timeline":[{"kind":"published","date":"2022-12-22T00:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-04-15T13:48:52.427Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":26,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T05:56:27.829Z","stale":false,"partial":false}}