Linux · Security advisory · September 18, 2025
DSA-6003-1: firefox-esr security update
DSA-6003-1, released September 18, 2025, fixes 1 CVE in firefox-esr. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
1
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0029
21st percentile
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| firefox-esr | Debian 12.15 (bookworm) | 140.3.0esr-1~deb12u1 |
| firefox-esr | Debian 13.5 (trixie) | 140.3.0esr-1~deb13u1 |
CVEs this fix closes
| Priority | CVE | Title | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| High | CVE-2025-10527 | Sandbox escape due to use-after-free in the Graphics: Canvas2D component | 7.5 | 0.0029 | None reported |
Showing 1 to 1 of 1
1