Linux · 
openSUSE Leap · Security advisory · November 7, 2026
openSUSE Leap · Security advisory · November 7, 2026OPENSUSE-SU-2026:22139-1: MozillaFirefox security update
OPENSUSE-SU-2026:22139-1, released November 7, 2026, fixes 85 CVEs in MozillaFirefox (version 153.5.0-160000.1.1). None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
85
4 rated Critical
Exploited
0
None reported
Highest CVSS
9.6
Base score, 0 to 10
Highest EPSS
0.0074
55th percentile
Priority of the 85 CVEs
Patch now 0
Urgent 4
High 62
Routine 19
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| MozillaFirefox | opensuse-leap 16.0 | 153.5.0-160000.1.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-109745 | firefox-esr: Sandbox escape due to uninitialized memory in the DOM: Web Serial component | 9.6 | 0.0035 | None reported |
| Urgent | CVE-2026-109708 | firefox-esr: Sandbox escape due to incorrect boundary conditions in the Networking component | 9.6 | 0.0033 | None reported |
| Urgent | CVE-2026-109705 | thunderbird: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component | 9.6 | 0.0033 | None reported |
| Urgent | CVE-2026-109707 | firefox-esr: Sandbox escape due to use-after-free in the Networking component | 9.6 | 0.0033 | None reported |
| High | CVE-2026-66046 | Expat Denial of Service via storeAtts() Quadratic Complexity | 7.5 | 0.0074 | None reported |
| High | CVE-2026-45186 | In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input. | 8.2 | 0.0048 | None reported |
| High | CVE-2026-109733 | thunderbird: JIT miscompilation in the JavaScript Engine: JIT component | 8.8 | 0.0046 | None reported |
| High | CVE-2026-109704 | firefox: Privilege escalation in the Application Update component | 8.2 | 0.0041 | None reported |
| High | CVE-2026-93990 | Expat through 2.8.4 Malformed UTF-16 Acceptance via Unchecked Surrogate | 7.5 | 0.0040 | None reported |
| High | CVE-2026-109730 | thunderbird: Integer overflow in the Graphics component | 8.8 | 0.0037 | None reported |
| High | CVE-2026-109743 | thunderbird: Privilege escalation in the Panning and Zooming component | 8.8 | 0.0035 | None reported |
| High | CVE-2026-109762 | firefox-esr: Incorrect boundary conditions in the SVG component | 8.8 | 0.0035 | None reported |
| High | CVE-2026-109740 | firefox: Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Secu... | 8.2 | 0.0035 | None reported |
| High | CVE-2026-109753 | thunderbird: Incorrect boundary conditions in the Layout component | 8.1 | 0.0034 | None reported |
| High | CVE-2026-109734 | firefox-esr: Mitigation bypass in the DOM: Security component | 8.1 | 0.0034 | None reported |
| High | CVE-2026-109737 | firefox-esr: Mitigation bypass in the Enterprise Policies component | 8.1 | 0.0034 | None reported |
| High | CVE-2026-109760 | firefox-esr: Mitigation bypass in the Networking: HTTP component | 8.1 | 0.0034 | None reported |
| High | CVE-2026-109766 | thunderbird: Mitigation bypass in the Enterprise Policies component | 8.1 | 0.0034 | None reported |
| High | CVE-2026-109709 | thunderbird: Information disclosure, privilege escalation in the Security: Process Sandboxing component | 8.8 | 0.0033 | None reported |
| High | CVE-2026-109736 | firefox-esr: Frame poisoning in the Layout component | 8.1 | 0.0032 | None reported |
| High | CVE-2026-109744 | firefox-esr: Other issue in the DOM: File component | 8.1 | 0.0032 | None reported |
| High | CVE-2026-109754 | firefox-esr: Incorrect boundary conditions in the DOM: Editor component | 8.1 | 0.0032 | None reported |
| High | CVE-2026-109756 | thunderbird: Privilege escalation in the DOM: Navigation component | 8.8 | 0.0032 | None reported |
| High | CVE-2026-109715 | firefox-esr: Incorrect boundary conditions in the JavaScript Engine component | 8.8 | 0.0031 | None reported |
| High | CVE-2026-109716 | firefox-esr: Incorrect boundary conditions in the JavaScript Engine component | 8.8 | 0.0031 | None reported |
Showing 1 to 25 of 85
1Next
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.