{"schemaVersion":3,"id":"CVE-2025-1010","aliases":["UBUNTU-CVE-2025-1010","DEBIAN-CVE-2025-1010","CGA-7gcq-jfpg-3xpr","CGA-fvh7-hfjj-fw29","CGA-65pc-4573-7g6f","CGA-pppg-738f-hvpc"],"status":"published","duplicateOf":null,"title":null,"description":"An attacker could have caused a use-after-free via the Custom Highlight API, leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 135, Firefox ESR 115.20, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.","dates":{"published":"2025-02-04T13:58:52.357Z","modified":"2026-04-13T14:25:08.956Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":7.2,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":7.2,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Wolfi","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":7.2,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Chainguard","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":7.2,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00464,"percentile":0.38861,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00464},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00464,"percentile":0.38861}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00464,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00464,"percentile":0.38861}]},"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":"chainguard","product":"firefox","name":"firefox","label":"firefox","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/firefox","purlType":"apk","versions":[{"text":"< 135.0-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 135.0-r0","eol":null,"hubHref":null},{"vendor":"chainguard","product":"firefox-esr","name":"firefox-esr","label":"firefox-esr","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/firefox-esr","purlType":"apk","versions":[{"text":"< 128.7.0-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 128.7.0-r0","eol":null,"hubHref":null},{"vendor":"wolfi","product":"firefox","name":"firefox","label":"firefox","ecosystem":"Wolfi","cpePart":null,"purl":"pkg:apk/wolfi/firefox","purlType":"apk","versions":[{"text":"< 135.0-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 135.0-r0","eol":null,"hubHref":null},{"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":"< 128.7.0esr-1~deb12u1","noFixRecorded":false,"fixedIn":null},{"text":"< 128.7.0esr-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 128.7.0esr-1~deb12u1 | < 128.7.0esr-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":"< 1:128.7.0esr-1~deb12u1","noFixRecorded":false,"fixedIn":null},{"text":"< 1:128.7.0esr-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:128.7.0esr-1~deb12u1 | < 1:128.7.0esr-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"firefox","name":"firefox","label":"firefox","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/firefox","purlType":"deb","versions":[{"text":"< 135.0+build2-0ubuntu0.20.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 135.0+build2-0ubuntu0.20.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"mozjs102","name":"mozjs102","label":"mozjs102","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/mozjs102","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"mozjs115","name":"mozjs115","label":"mozjs115","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/mozjs115","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"mozjs38","name":"mozjs38","label":"mozjs38","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/mozjs38","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"mozjs52","name":"mozjs52","label":"mozjs52","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/mozjs52","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"mozjs68","name":"mozjs68","label":"mozjs68","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/mozjs68","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"mozjs78","name":"mozjs78","label":"mozjs78","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/mozjs78","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"mozjs91","name":"mozjs91","label":"mozjs91","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/mozjs91","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","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":"< 1:128.12.0+build1-0ubuntu0.22.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:128.12.0+build1-0ubuntu0.22.04.1","eol":null,"hubHref":null},{"vendor":"mozilla","product":"firefox","name":"Firefox","label":"firefox","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 115.20.0","noFixRecorded":false,"fixedIn":null},{"text":"< 135.0","noFixRecorded":false,"fixedIn":null},{"text":"≥ 128.1.0, < 128.7.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 115.20.0 | < 135.0 | ≥ 128.1.0, < 128.7.0","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"firefox","label":"Firefox","category":"app"}},"hubHref":"/vendor/mozilla/firefox"},{"vendor":"mozilla","product":"thunderbird","name":"Thunderbird","label":"thunderbird","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 128.0.1, < 128.7.0","noFixRecorded":false,"fixedIn":null},{"text":"≥ 131.0, < 135.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 128.0.1, < 128.7.0 | ≥ 131.0, < 135.0","eol":null,"hubHref":"/vendor/mozilla/thunderbird"}],"affectedCount":16,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1936982","label":"bugzilla.mozilla.org/show_bug.cgi?id=1936982","hostname":"bugzilla.mozilla.org","tags":["REPORT","Permissions Required"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-07/","label":"www.mozilla.org/security/advisories/mfsa2025-07/","hostname":"www.mozilla.org","tags":["REPORT","Advisory","Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-08/","label":"www.mozilla.org/security/advisories/mfsa2025-08/","hostname":"www.mozilla.org","tags":["REPORT","Advisory","Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-09/","label":"www.mozilla.org/security/advisories/mfsa2025-09/","hostname":"www.mozilla.org","tags":["REPORT","Advisory","Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-10/","label":"www.mozilla.org/security/advisories/mfsa2025-10/","hostname":"www.mozilla.org","tags":["REPORT","Advisory","Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-11/","label":"www.mozilla.org/security/advisories/mfsa2025-11/","hostname":"www.mozilla.org","tags":["REPORT","Advisory","Vendor Advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/02/msg00006.html","label":"lists.debian.org/debian-lts-announce/2025/02/msg00006.html","hostname":"lists.debian.org","tags":["WEB"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/02/msg00005.html","label":"lists.debian.org/debian-lts-announce/2025/02/msg00005.html","hostname":"lists.debian.org","tags":["WEB"]},{"url":"https://ubuntu.com/security/CVE-2025-1010","label":"ubuntu.com/security/CVE-2025-1010","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-1010","label":"www.cve.org/CVERecord?id=CVE-2025-1010","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2025-07/#CVE-2025-1010","label":"www.mozilla.org/en-US/security/advisories/mfsa2025-07/","hostname":"www.mozilla.org","tags":["REPORT"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2025-09/#CVE-2025-1010","label":"www.mozilla.org/en-US/security/advisories/mfsa2025-09/","hostname":"www.mozilla.org","tags":["REPORT"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2025-10/#CVE-2025-1010","label":"www.mozilla.org/en-US/security/advisories/mfsa2025-10/","hostname":"www.mozilla.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-7263-1","label":"ubuntu.com/security/notices/USN-7263-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/notices/USN-7663-1","label":"ubuntu.com/security/notices/USN-7663-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-1010","label":"security-tracker.debian.org/tracker/CVE-2025-1010","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["DLA-4044-1","DLA-4045-1","DSA-5858-1","DSA-5861-1","MGASA-2025-0045","MGASA-2025-0048","OPENSUSE-SU-2025:14727-1","OPENSUSE-SU-2025:14730-1","OPENSUSE-SU-2025:14731-1","RHSA-2025:1066","RHSA-2025:1132","RHSA-2025:1133","RHSA-2025:1135","RHSA-2025:1136","RHSA-2025:1137","RHSA-2025:1138","RHSA-2025:1139","RHSA-2025:1140","RHSA-2025:1184","RHSA-2025:1283","RHSA-2025:1292","RHSA-2025:1317","RHSA-2025:1318","RHSA-2025:1319","RHSA-2025:1339","RHSA-2025:1340","RHSA-2025:1341","RHSA-2025:1348","SUSE-SU-2025:0374-1","SUSE-SU-2025:0391-1","SUSE-SU-2025:0405-1","USN-7263-1","USN-7663-1"],"duplicates":[],"related":["CGA-8HPM-34F5-PRCG","CGA-M662-WJ32-2FVV","CGA-R3XG-9QVV-JM6P","OPENSUSE-SU-2025:14727-1","OPENSUSE-SU-2025:14730-1","OPENSUSE-SU-2025:14731-1","SUSE-SU-2025:0374-1","SUSE-SU-2025:0391-1","SUSE-SU-2025:0405-1","USN-7263-1","USN-7663-1"]},"timeline":[{"kind":"published","date":"2025-02-04T13:58:52.357Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-13T14:25:08.956Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T11:37:28.725Z","stale":false,"partial":false}}