Linux · 
Ubuntu · Package update · March 4, 2025
Ubuntu · Package update · March 4, 2025firefox 136.0+build3-0ubuntu0.20.04.1: firefox 136.0+build3-0ubuntu0.20.04.1 for Ubuntu 20.04.3 LTS (focal)
firefox 136.0+build3-0ubuntu0.20.04.1, released March 4, 2025, fixes 11 CVEs in firefox. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.
HighUnsupported product
CVEs closed
11
None rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0056
47th percentile
Priority of the 11 CVEs
Patch now 0
Urgent 0
High 10
Routine 1
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| firefox | Ubuntu 20.04.3 LTS (focal) | 136.0+build3-0ubuntu0.20.04.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2025-1937 | Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 115.21, Firefox ESR 128.8, and Thunderbird 128.8 | 8.8 | 0.0056 | None reported |
| High | CVE-2025-1931 | Use-after-free in WebTransportChild | 8.8 | 0.0054 | None reported |
| High | CVE-2025-1942 | Disclosure of uninitialized memory when .toUpperCase() causes string to get longer | 9.8 | 0.0048 | None reported |
| High | CVE-2025-1934 | Unexpected GC during RegExp bailout processing | 8.8 | 0.0045 | None reported |
| High | CVE-2025-1936 | Adding %00 and a fake extension to a jar: URL changed the interpretation of the contents | 8.8 | 0.0045 | None reported |
| High | CVE-2025-1943 | Memory safety bugs fixed in Firefox 136 and Thunderbird 136 | 8.2 | 0.0044 | None reported |
| High | CVE-2025-1932 | Inconsistent comparator in XSLT sorting led to out-of-bounds access | 8.8 | 0.0042 | None reported |
| High | CVE-2025-1935 | Clickjacking the registerProtocolHandler info-bar | 8.8 | 0.0034 | None reported |
| High | CVE-2025-1938 | Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and Thunderbird 128.8 | 8.8 | 0.0034 | None reported |
| High | CVE-2025-1933 | JIT corruption of WASM i32 return values on 64-bit CPUs | 8.8 | 0.0032 | None reported |
| Routine | CVE-2025-1414 | Memory safety bugs fixed in Firefox 135.0.1 | 6.5 | 0.0045 | None reported |
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