Linux · SUSE Linux Enterprise · Security advisory · September 30, 2026
SUSE-SU-2026:23981-1: MozillaFirefox security update
SUSE-SU-2026:23981-1, released September 30, 2026, fixes 62 CVEs in MozillaFirefox (version 153.4.0-160000.1.1). None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
62
5 rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0042
36th percentile
Priority of the 62 CVEs
Patch now 0
Urgent 5
High 53
Routine 4
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| MozillaFirefox | sles 16.0 | 153.4.0-160000.1.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-100760 | Sandbox escape in the Security: Process Sandboxing component | 9.6 | 0.0030 | None reported |
| Urgent | CVE-2026-100787 | Sandbox escape in the XUL component | 9.6 | 0.0030 | None reported |
| Urgent | CVE-2026-100800 | Sandbox escape due to use-after-free in the Disability Access APIs component | 9.6 | 0.0029 | None reported |
| Urgent | CVE-2026-100828 | Mitigation bypass in the Bookmarks & History component | 9.6 | 0.0024 | None reported |
| Urgent | CVE-2026-100829 | Mitigation bypass in the DOM: Security component | 9.6 | 0.0024 | None reported |
| High | CVE-2026-100788 | Invalid pointer in the JavaScript: WebAssembly component | 9.8 | 0.0042 | None reported |
| High | CVE-2026-100773 | Use-after-free in the Storage: IndexedDB component | 8.8 | 0.0040 | None reported |
| High | CVE-2026-100791 | Use-after-free in the DOM: Core & HTML component | 8.8 | 0.0040 | None reported |
| High | CVE-2026-100783 | Uninitialized memory in the Audio/Video component | 7.5 | 0.0035 | None reported |
| High | CVE-2026-100775 | Sandbox escape in the Graphics component | 9.6 | 0.0033 | None reported |
| High | CVE-2026-100781 | Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component | 9.6 | 0.0033 | None reported |
| High | CVE-2026-100767 | Use-after-free in the Networking: Cache component | 8.8 | 0.0033 | None reported |
| High | CVE-2026-100779 | Use-after-free in the XSLT component | 8.8 | 0.0033 | None reported |
| High | CVE-2026-100784 | Use-after-free in the Layout: Text and Fonts component | 8.8 | 0.0033 | None reported |
| High | CVE-2026-100794 | Sandbox escape due to incorrect boundary conditions in the Internationalization component | 9.6 | 0.0032 | None reported |
| High | CVE-2026-100762 | Sandbox escape due to use-after-free in the DOM: Content Processes component | 9.6 | 0.0032 | None reported |
| High | CVE-2026-100770 | Sandbox escape due to use-after-free in the DOM: Content Processes component | 9.6 | 0.0032 | None reported |
| High | CVE-2026-100778 | Sandbox escape due to use-after-free in the DOM: Core & HTML component | 9.6 | 0.0032 | None reported |
| High | CVE-2026-100786 | Sandbox escape due to use-after-free in the Graphics component | 9.6 | 0.0032 | None reported |
| High | CVE-2026-100757 | Use-after-free in the Widget component | 8.8 | 0.0032 | None reported |
| High | CVE-2026-100774 | Use-after-free in the DOM: Core & HTML component | 8.8 | 0.0032 | None reported |
| High | CVE-2026-100777 | Use-after-free in the Graphics: Canvas2D component | 8.8 | 0.0032 | None reported |
| High | CVE-2026-100780 | Use-after-free in the DOM: Core & HTML component | 8.8 | 0.0032 | None reported |
| High | CVE-2026-100785 | Use-after-free in the DOM: Core & HTML component | 8.8 | 0.0032 | None reported |
| High | CVE-2026-100789 | Use-after-free in the Graphics: Canvas2D component | 8.8 | 0.0032 | None reported |
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