Linux · 
Oracle Linux · Security advisory · May 23, 2026
Oracle Linux · Security advisory · May 23, 2026ELSA-2026-19588: firefox security update
ELSA-2026-19588, released May 23, 2026, fixes 4 CVEs in firefox (version 0:140.10.1-1.0.1.el8_10). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
4
None rated Critical
Exploited
0
None reported
Highest CVSS
9.6
Base score, 0 to 10
Highest EPSS
0.0038
31st percentile
Priority of the 4 CVEs
Patch now 0
Urgent 0
High 4
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| firefox | ol 8 | 0:140.10.1-1.0.1.el8_10 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-7323 | Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 | 8.8 | 0.0038 | None reported |
| High | CVE-2026-7320 | Information disclosure due to incorrect boundary conditions in the Audio/Video component | 8.8 | 0.0032 | None reported |
| High | CVE-2026-7322 | Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 | 8.8 | 0.0032 | None reported |
| High | CVE-2026-7321 | Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component | 9.6 | 0.0026 | None reported |
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