Linux · openSUSE Leap · Security advisory · September 24, 2026

OPENSUSE-SU-2026:21951-1: MozillaFirefox security update

OPENSUSE-SU-2026:21951-1, released September 24, 2026, fixes 63 CVEs in MozillaFirefox (version 153.3.0-160000.1.1). None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent
CVEs closed
63
11 rated Critical
Exploited
0
None reported
Highest CVSS
9.6
Base score, 0 to 10
Highest EPSS
0.0036
29th percentile

Priority of the 63 CVEs

Patch now 0 Urgent 11 High 46 Routine 6

Fixed package versions

ProductReleaseFixed in
MozillaFirefoxopensuse-leap 16.0153.3.0-160000.1.1

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Urgent CVE-2026-92018 Sandbox escape in the DOM: Core & HTML component9.6 0.0033 None reported
Urgent CVE-2026-92032 Sandbox escape due to invalid pointer in the Graphics component9.6 0.0032 None reported
Urgent CVE-2026-92038 Mitigation bypass in the Remote Settings Client component9.1 0.0032 None reported
Urgent CVE-2026-92041 Mitigation bypass in the DOM: Networking component9.1 0.0032 None reported
Urgent CVE-2026-92075 Mitigation bypass in the Networking component9.1 0.0032 None reported
Urgent CVE-2026-92045 Sandbox escape due to incorrect boundary conditions in the WebRTC component9.6 0.0030 None reported
Urgent CVE-2026-92048 Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component9.0 0.0028 None reported
Urgent CVE-2026-92057 Mitigation bypass in the Enterprise Policies component9.1 0.0025 None reported
Urgent CVE-2026-92079 Mitigation bypass in the Widget: Win32 component9.1 0.0025 None reported
Urgent CVE-2026-92071 Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component9.6 0.0024 None reported
Urgent CVE-2026-92059 Incorrect boundary conditions in the DOM: Editor component9.3 0.0011 None reported
High CVE-2026-92005 Use-after-free in the Audio/Video: Web Codecs component7.5 0.0036 None reported
High CVE-2026-92035 Sandbox escape due to incorrect boundary conditions in the Graphics component9.6 0.0033 None reported
High CVE-2026-92006 Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component8.8 0.0033 None reported
High CVE-2026-92044 Information disclosure in the Networking: HTTP component7.5 0.0032 None reported
High CVE-2026-92022 Use-after-free in the DOM: HTML Parser component8.8 0.0032 None reported
High CVE-2026-92023 Use-after-free in the XML component8.8 0.0032 None reported
High CVE-2026-92024 Use-after-free in the SVG component8.8 0.0032 None reported
High CVE-2026-92025 Use-after-free in the DOM: Navigation component8.8 0.0032 None reported
High CVE-2026-92027 Use-after-free in the DOM: Streams component8.8 0.0032 None reported
High CVE-2026-92028 Use-after-free in the DOM: Core & HTML component8.8 0.0032 None reported
High CVE-2026-92029 Use-after-free in the SVG component8.8 0.0032 None reported
High CVE-2026-92016 Use-after-free in the Disability Access APIs component8.8 0.0031 None reported
High CVE-2026-92026 Use-after-free in the Networking component8.8 0.0031 None reported
High CVE-2026-92019 Mitigation bypass in the Remote Settings Client component8.1 0.0031 None reported
Showing 1 to 25 of 63 1Next

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