{"schemaVersion":3,"id":"MGASA-2026-0387","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Updated firefox & nss packages fix security vulnerabilities\n\nSandbox escape in the Remote Settings Client component. (CVE-2026-75874)\nPrivilege escalation in the DOM: Workers component. (CVE-2026-16365)\nUse-after-free in the JavaScript: GC component. (CVE-2026-84118)\nSandbox escape due to use-after-free in the DOM: Navigation component.\n(CVE-2026-84119)\nUse-after-free in the Audio/Video component. (CVE-2026-84120)\nSandbox escape due to use-after-free in the DOM: Security component.\n(CVE-2026-84121)\nUse-after-free in the Audio/Video component. (CVE-2026-84122)\nPrivilege escalation due to use-after-free in the Graphics: WebGPU\ncomponent. (CVE-2026-84123)\nUse-after-free in the DOM: Core & HTML component. (CVE-2026-84124)\nUse-after-free in the DOM: Core & HTML component. (CVE-2026-84125)\nPrivilege escalation in the DOM: Navigation component. (CVE-2026-16371)\nPrivilege escalation in the Application Update component.\n(CVE-2026-74952)\nSite isolation issue in the DOM: Navigation component. (CVE-2026-84129)\nInformation disclosure in the Graphics: WebGPU component.\n(CVE-2026-84130)\nPrivilege escalation due to invalid pointer in the Graphics component.\n(CVE-2026-84131)\nInformation disclosure in the Networking: HTTP component.\n(CVE-2026-84132)\nSite isolation issue in the DOM: Push Subscriptions component.\n(CVE-2026-84133)\nOther issue in the Profile Backup component. (CVE-2026-84134)\nOther issue in the DOM: Navigation component. (CVE-2026-84136)\nSpoofing issue in the DOM: Core & HTML component. (CVE-2026-84137)\nClickjacking issue in the DOM: Events component. (CVE-2026-84139)\nSite isolation issue in the DOM: Navigation component. (CVE-2026-84140)\nInteger overflow in the Graphics: ImageLib component. (CVE-2026-84141)\nInternally found bugs fixed in Firefox 155, Firefox ESR 153.2 and\nFirefox ESR 140.15. (CVE-2026-84143)\nInternally found bugs fixed in Firefox 155 and Firefox ESR 153.2.\n(CVE-2026-84144)\nInternally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox\nESR 140.15 and Firefox ESR 115.40. (CVE-2026-84145)","dates":{"published":"2026-09-09T18:01:33.000Z","modified":"2026-09-09T18:27:33.396Z","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":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"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":[],"affected":[{"vendor":"mageia","product":"firefox","name":"firefox","label":"firefox","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/firefox","purlType":"rpm","versions":[{"text":"< 153.2.0-1.mga10","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 153.2.0-1.mga10","eol":null,"hubHref":null},{"vendor":"mageia","product":"firefox-l10n","name":"firefox-l10n","label":"firefox-l10n","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/firefox-l10n","purlType":"rpm","versions":[{"text":"< 153.2.0-1.mga10","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 153.2.0-1.mga10","eol":null,"hubHref":null},{"vendor":"mageia","product":"nss","name":"nss","label":"nss","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/nss","purlType":"rpm","versions":[{"text":"< 3.128.0-1.mga10","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.128.0-1.mga10","eol":null,"hubHref":null},{"vendor":"mageia","product":"firefox","name":"firefox","label":"firefox","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/firefox","purlType":"rpm","versions":[{"text":"< 140.15.0-1.mga9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.15.0-1.mga9","eol":null,"hubHref":null},{"vendor":"mageia","product":"firefox-l10n","name":"firefox-l10n","label":"firefox-l10n","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/firefox-l10n","purlType":"rpm","versions":[{"text":"< 140.15.0-1.mga9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.15.0-1.mga9","eol":null,"hubHref":null},{"vendor":"mageia","product":"nss","name":"nss","label":"nss","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/nss","purlType":"rpm","versions":[{"text":"< 3.128.0-1.mga9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.128.0-1.mga9","eol":null,"hubHref":null}],"affectedCount":6,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://advisories.mageia.org/MGASA-2026-0387.html","label":"advisories.mageia.org/MGASA-2026-0387.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=36235","label":"bugs.mageia.org/show_bug.cgi?id=36235","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"https://firefox-source-docs.mozilla.org/security/nss/releases/nss_3_128.html","label":"firefox-source-docs.mozilla.org/security/nss/releases/nss_3_128.html","hostname":"firefox-source-docs.mozilla.org","tags":["WEB"]},{"url":"https://www.firefox.com/en-US/firefox/140.15.0/releasenotes/","label":"www.firefox.com/en-US/firefox/140.15.0/releasenotes/","hostname":"www.firefox.com","tags":["WEB"]},{"url":"https://www.firefox.com/en-US/firefox/153.2.0/releasenotes/","label":"www.firefox.com/en-US/firefox/153.2.0/releasenotes/","hostname":"www.firefox.com","tags":["WEB"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2026-84/","label":"www.mozilla.org/en-US/security/advisories/mfsa2026-84/","hostname":"www.mozilla.org","tags":["Advisory"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2026-85/","label":"www.mozilla.org/en-US/security/advisories/mfsa2026-85/","hostname":"www.mozilla.org","tags":["Advisory"]}],"lineage":{"upstream":["CVE-2026-16365","CVE-2026-16371","CVE-2026-74952","CVE-2026-75874","CVE-2026-84118","CVE-2026-84119","CVE-2026-84120","CVE-2026-84121","CVE-2026-84122","CVE-2026-84123","CVE-2026-84124","CVE-2026-84125","CVE-2026-84129","CVE-2026-84130","CVE-2026-84131","CVE-2026-84132","CVE-2026-84133","CVE-2026-84134","CVE-2026-84136","CVE-2026-84137","CVE-2026-84139","CVE-2026-84140","CVE-2026-84141","CVE-2026-84143","CVE-2026-84144","CVE-2026-84145"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-09-09T18:01:33.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-09-09T18:27:33.396Z","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":"2026-10-20T05:44:37.207Z","stale":false,"partial":false}}