Linux · SUSE Linux Enterprise · Security advisory · August 20, 2026
SUSE-SU-2026:3658-1: MozillaFirefox security update
SUSE-SU-2026:3658-1, released August 20, 2026, fixes 4 CVEs in MozillaFirefox (version 140.14.0-150200.152.251.1). None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
4
1 rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0057
47th percentile
Priority of the 4 CVEs
Patch now 0
Urgent 1
High 0
Routine 3
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| MozillaFirefox | sles 15.6 | 140.14.0-150200.152.251.1 |
| MozillaFirefox | sles 15.7 | 140.14.0-150200.152.251.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-74989 | Internally found bugs fixed in Thunderbird 154 | 9.8 | 0.0057 | None reported |
| Routine | CVE-2026-74951 | MozillaFirefox: This update for MozillaFirefox fixes the following issues: Update to Firefox Extended Support Release 140.14.0 ESR.... | n/a | 0.0028 | None reported |
| Routine | CVE-2026-74980 | MozillaFirefox: This update for MozillaFirefox fixes the following issues: Update to Firefox Extended Support Release 140.14.0 ESR.... | n/a | 0.0028 | None reported |
| Routine | CVE-2026-74975 | MozillaFirefox: This update for MozillaFirefox fixes the following issues: Update to Firefox Extended Support Release 140.14.0 ESR.... | n/a | 0.0025 | None reported |
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