Linux · 
Red Hat · Security advisory · September 22, 2025
Red Hat · Security advisory · September 22, 2025RHSA-2025:16260: firefox security update
RHSA-2025:16260, released September 22, 2025, fixes 8 CVEs in firefox (version 0:140.3.0-1.el8_10). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
8
None rated Critical
Exploited
0
None reported
Highest CVSS
8.8
Base score, 0 to 10
Highest EPSS
0.0078
56th percentile
Priority of the 8 CVEs
Patch now 0
Urgent 0
High 8
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| firefox | RHEL 8 | 0:140.3.0-1.el8_10 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2025-10533 | Integer overflow in the SVG component | 8.8 | 0.0078 | None reported |
| High | CVE-2025-10528 | Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component | 7.5 | 0.0037 | None reported |
| High | CVE-2025-10537 | Memory safety bugs fixed in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143 | 8.8 | 0.0034 | None reported |
| High | CVE-2025-10532 | Incorrect boundary conditions in the JavaScript: GC component | 7.5 | 0.0033 | None reported |
| High | CVE-2025-10529 | Same-origin policy bypass in the Layout component | 7.5 | 0.0032 | None reported |
| High | CVE-2025-10527 | Sandbox escape due to use-after-free in the Graphics: Canvas2D component | 7.5 | 0.0029 | None reported |
| High | CVE-2024-12224 | aws-nitro-enclaves-cli: This update for aws-nitro-enclaves-cli fixes the following issues: - Fix idna accepts Punycode labels that do not... | 8.8 | 0.0023 | None reported |
| High | CVE-2025-10536 | Information disclosure in the Networking: Cache component | 7.5 | 0.0018 | None reported |
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