{"id":"OESA-2026-3790","summary":"firefox security update","details":"Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo\r\n\r\nSecurity Fix(es):\n\nPrivilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 153.(CVE-2026-16365)\n\nSandbox escape in the Remote Settings Client component. This vulnerability was fixed in Firefox 154 and Thunderbird 154.(CVE-2026-75874)\n\nSandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, and Firefox ESR 153.2.(CVE-2026-84119)\n\nUse-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, and Firefox ESR 153.2.(CVE-2026-84120)\n\nSandbox escape due to use-after-free in the DOM: Security component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, and Firefox ESR 153.2.(CVE-2026-84121)\n\nUse-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 155, Firefox ESR 140.15, and Firefox ESR 153.2.(CVE-2026-84122)\n\nUse-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 140.15, and Firefox ESR 153.2.(CVE-2026-84124)\n\nPrivilege escalation due to invalid pointer in the Graphics component of Mozilla Firefox. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, and Firefox ESR 153.2.(CVE-2026-84131)\n\nInternally found bugs present in Firefox 154, Firefox ESR 153.1 and Firefox ESR 140.14. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 140.15, and Firefox ESR 153.2.(CVE-2026-84143)\n\nInternally found bugs present in Firefox 154, Firefox ESR 153.1, Firefox ESR 140.14 and Firefox ESR 115.39. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, and Firefox ESR 153.2.(CVE-2026-84145)","modified":"2026-09-13T16:45:43.202226454Z","published":"2026-09-14T16:34:24Z","upstream":["CVE-2026-16365","CVE-2026-75874","CVE-2026-84119","CVE-2026-84120","CVE-2026-84121","CVE-2026-84122","CVE-2026-84124","CVE-2026-84131","CVE-2026-84143","CVE-2026-84145"],"database_specific":{"severity":"Critical"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3790"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16365"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75874"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84119"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84120"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84121"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84122"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84124"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84131"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84143"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84145"}],"affected":[{"package":{"name":"firefox","ecosystem":"openEuler:24.03-LTS-SP4","purl":"pkg:rpm/openEuler/firefox&distro=openEuler-24.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"140.15.0-1.oe2403sp4"}]}],"ecosystem_specific":{"src":["firefox-140.15.0-1.oe2403sp4.src.rpm"],"x86_64":["firefox-140.15.0-1.oe2403sp4.x86_64.rpm","firefox-debuginfo-140.15.0-1.oe2403sp4.x86_64.rpm","firefox-debugsource-140.15.0-1.oe2403sp4.x86_64.rpm"],"aarch64":["firefox-140.15.0-1.oe2403sp4.aarch64.rpm","firefox-debuginfo-140.15.0-1.oe2403sp4.aarch64.rpm","firefox-debugsource-140.15.0-1.oe2403sp4.aarch64.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-3790.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"}]}