{"schemaVersion":3,"id":"SUSE-SU-2026:2582-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Security update for MozillaFirefox\n\nThis update for MozillaFirefox fixes the following issues:\n\nUpdate to Firefox 140.12.0 ESR (MFSA 2026-58, bsc#1268071):\n\n- CVE-2026-12289: Privilege escalation in the Graphics: WebRender component.\n- CVE-2026-12290: Memory safety bug fixed in Firefox ESR 140.12.\n- CVE-2026-12291: Use-after-free in the Networking: HTTP component.\n- CVE-2026-12292: Incorrect boundary conditions in the Web Audio component.\n- CVE-2026-12294: Sandbox escape in the DOM: Workers component.\n- CVE-2026-12295: Sandbox escape in the DOM: Navigation component.\n- CVE-2026-12296: Sandbox escape in the Security: Process Sandboxing component.\n- CVE-2026-12297: Sandbox escape due to incorrect boundary conditions in the Networking component.\n- CVE-2026-12298: Memory safety bug fixed in Firefox ESR 140.12.\n- CVE-2026-12299: JIT miscompilation in the DOM: Core & HTML component.\n- CVE-2026-12302: Mitigation bypass in the DOM: Security component.\n- CVE-2026-12304: Same-origin policy bypass in the Networking: Cookies component.\n- CVE-2026-12305: Memory safety bug fixed in Firefox ESR 140.12.\n- CVE-2026-12306: Memory safety bug fixed in Firefox ESR 140.12.\n- CVE-2026-12307: Memory safety bug fixed in Firefox ESR 140.12.\n- CVE-2026-12308: Memory safety bug fixed in Firefox ESR 140.12.\n- CVE-2026-12309: Memory safety bug fixed in Firefox ESR 140.12.\n- CVE-2026-12310: Memory safety bug fixed in Firefox ESR 140.12.\n- CVE-2026-12311: Information disclosure, sandbox escape in the Security: Process Sandboxing component.\n- CVE-2026-12312: Memory safety bug fixed in Firefox ESR 140.12.\n- CVE-2026-12313: Information disclosure, sandbox escape in the Security: Process Sandboxing component.\n- CVE-2026-12314: Memory safety bug fixed in Firefox ESR 140.12.\n- CVE-2026-12315: Mitigation bypass in the DOM: Security component.\n- CVE-2026-12324: Incorrect boundary conditions in the Graphics: CanvasWebGL component.\n- CVE-2026-12325: Denial-of-service in the Graphics: ImageLib component.\n- CVE-2026-12327: Memory safety bugs fixed in Firefox ESR 140.12, Thunderbird ESR 140.12, Firefox 152 and Thunderbird\n  152.\n- CVE-2026-12328: Memory safety bugs fixed in Firefox ESR 115.37, Firefox ESR 140.12, Thunderbird ESR 140.12, Firefox\n  152 and Thunderbird 152.\n- CVE-2026-12329: Memory safety bug fixed in Firefox ESR 140.12.\n- CVE-2026-12330: Incorrect boundary conditions in the Internationalization component.","dates":{"published":"2026-06-23T13:27:07.000Z","modified":"2026-07-13T14:00:32.642Z","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":"suse","product":"MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS","name":"MozillaFirefox","label":"MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS","purlType":"rpm","versions":[{"text":"< 140.12.0-150200.152.242.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.0-150200.152.242.1","eol":null,"hubHref":null},{"vendor":"suse","product":"MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS","name":"MozillaFirefox","label":"MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS","purlType":"rpm","versions":[{"text":"< 140.12.0-150200.152.242.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.0-150200.152.242.1","eol":null,"hubHref":null},{"vendor":"suse","product":"MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS","name":"MozillaFirefox","label":"MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS","purlType":"rpm","versions":[{"text":"< 140.12.0-150200.152.242.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.0-150200.152.242.1","eol":null,"hubHref":null},{"vendor":"suse","product":"MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS","name":"MozillaFirefox","label":"MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS","purlType":"rpm","versions":[{"text":"< 140.12.0-150200.152.242.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.0-150200.152.242.1","eol":null,"hubHref":null},{"vendor":"suse","product":"MozillaFirefox&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP7","name":"MozillaFirefox","label":"MozillaFirefox&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP7","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/MozillaFirefox&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP7","purlType":"rpm","versions":[{"text":"< 140.12.0-150200.152.242.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.0-150200.152.242.1","eol":null,"hubHref":null},{"vendor":"suse","product":"MozillaFirefox&distro=SUSE Linux Enterprise Server 15 SP4-LTSS","name":"MozillaFirefox","label":"MozillaFirefox&distro=SUSE Linux Enterprise Server 15 SP4-LTSS","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/MozillaFirefox&distro=SUSE Linux Enterprise Server 15 SP4-LTSS","purlType":"rpm","versions":[{"text":"< 140.12.0-150200.152.242.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.0-150200.152.242.1","eol":null,"hubHref":null},{"vendor":"suse","product":"MozillaFirefox&distro=SUSE Linux Enterprise Server 15 SP5-LTSS","name":"MozillaFirefox","label":"MozillaFirefox&distro=SUSE Linux Enterprise Server 15 SP5-LTSS","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/MozillaFirefox&distro=SUSE Linux Enterprise Server 15 SP5-LTSS","purlType":"rpm","versions":[{"text":"< 140.12.0-150200.152.242.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.0-150200.152.242.1","eol":null,"hubHref":null},{"vendor":"suse","product":"MozillaFirefox&distro=SUSE Linux Enterprise Server 15 SP6-LTSS","name":"MozillaFirefox","label":"MozillaFirefox&distro=SUSE Linux Enterprise Server 15 SP6-LTSS","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/MozillaFirefox&distro=SUSE Linux Enterprise Server 15 SP6-LTSS","purlType":"rpm","versions":[{"text":"< 140.12.0-150200.152.242.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.0-150200.152.242.1","eol":null,"hubHref":null},{"vendor":"suse","product":"MozillaFirefox&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP4","name":"MozillaFirefox","label":"MozillaFirefox&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP4","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/MozillaFirefox&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP4","purlType":"rpm","versions":[{"text":"< 140.12.0-150200.152.242.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.0-150200.152.242.1","eol":null,"hubHref":null},{"vendor":"suse","product":"MozillaFirefox&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP5","name":"MozillaFirefox","label":"MozillaFirefox&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP5","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/MozillaFirefox&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP5","purlType":"rpm","versions":[{"text":"< 140.12.0-150200.152.242.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.0-150200.152.242.1","eol":null,"hubHref":null},{"vendor":"suse","product":"MozillaFirefox&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP6","name":"MozillaFirefox","label":"MozillaFirefox&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP6","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/MozillaFirefox&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP6","purlType":"rpm","versions":[{"text":"< 140.12.0-150200.152.242.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.0-150200.152.242.1","eol":null,"hubHref":null}],"affectedCount":11,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20262582-1/","label":"www.suse.com/support/update/announcement/2026/suse-su-20262582-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1268071","label":"bugzilla.suse.com/1268071","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12289","label":"www.suse.com/security/cve/CVE-2026-12289","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12290","label":"www.suse.com/security/cve/CVE-2026-12290","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12291","label":"www.suse.com/security/cve/CVE-2026-12291","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12292","label":"www.suse.com/security/cve/CVE-2026-12292","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12294","label":"www.suse.com/security/cve/CVE-2026-12294","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12295","label":"www.suse.com/security/cve/CVE-2026-12295","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12296","label":"www.suse.com/security/cve/CVE-2026-12296","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12297","label":"www.suse.com/security/cve/CVE-2026-12297","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12298","label":"www.suse.com/security/cve/CVE-2026-12298","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12299","label":"www.suse.com/security/cve/CVE-2026-12299","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12302","label":"www.suse.com/security/cve/CVE-2026-12302","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12304","label":"www.suse.com/security/cve/CVE-2026-12304","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12305","label":"www.suse.com/security/cve/CVE-2026-12305","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12306","label":"www.suse.com/security/cve/CVE-2026-12306","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12307","label":"www.suse.com/security/cve/CVE-2026-12307","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12308","label":"www.suse.com/security/cve/CVE-2026-12308","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12309","label":"www.suse.com/security/cve/CVE-2026-12309","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12310","label":"www.suse.com/security/cve/CVE-2026-12310","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12311","label":"www.suse.com/security/cve/CVE-2026-12311","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12312","label":"www.suse.com/security/cve/CVE-2026-12312","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12313","label":"www.suse.com/security/cve/CVE-2026-12313","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12314","label":"www.suse.com/security/cve/CVE-2026-12314","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12315","label":"www.suse.com/security/cve/CVE-2026-12315","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12324","label":"www.suse.com/security/cve/CVE-2026-12324","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12325","label":"www.suse.com/security/cve/CVE-2026-12325","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12327","label":"www.suse.com/security/cve/CVE-2026-12327","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12328","label":"www.suse.com/security/cve/CVE-2026-12328","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12329","label":"www.suse.com/security/cve/CVE-2026-12329","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12330","label":"www.suse.com/security/cve/CVE-2026-12330","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2026-12289","CVE-2026-12290","CVE-2026-12291","CVE-2026-12292","CVE-2026-12294","CVE-2026-12295","CVE-2026-12296","CVE-2026-12297","CVE-2026-12298","CVE-2026-12299","CVE-2026-12302","CVE-2026-12304","CVE-2026-12305","CVE-2026-12306","CVE-2026-12307","CVE-2026-12308","CVE-2026-12309","CVE-2026-12310","CVE-2026-12311","CVE-2026-12312","CVE-2026-12313","CVE-2026-12314","CVE-2026-12315","CVE-2026-12324","CVE-2026-12325","CVE-2026-12327","CVE-2026-12328","CVE-2026-12329","CVE-2026-12330"],"downstream":[],"duplicates":[],"related":["CVE-2026-12289","CVE-2026-12290","CVE-2026-12291","CVE-2026-12292","CVE-2026-12294","CVE-2026-12295","CVE-2026-12296","CVE-2026-12297","CVE-2026-12298","CVE-2026-12299","CVE-2026-12302","CVE-2026-12304","CVE-2026-12305","CVE-2026-12306","CVE-2026-12307","CVE-2026-12308","CVE-2026-12309","CVE-2026-12310","CVE-2026-12311","CVE-2026-12312","CVE-2026-12313","CVE-2026-12314","CVE-2026-12315","CVE-2026-12324","CVE-2026-12325","CVE-2026-12327","CVE-2026-12328","CVE-2026-12329","CVE-2026-12330"]},"timeline":[{"kind":"published","date":"2026-06-23T13:27:07.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-13T14:00:32.642Z","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":"2026-10-22T08:49:10.427Z","stale":false,"partial":false}}