CVE-2025-1938Medium· 6.5▾ SunlitMemory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 30.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
Last analysed / modified upstream
Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.
firefox < 128.7.0firefox < 135.0thunderbird < 128.7.0thunderbird >= 129.0, < 135.0Upgrade past the affected range:
firefox 135.0thunderbird 135.0Connected by shared product, vendor, weakness, or advisory.
CVE-2025-1934Medium· 6.5It was possible to interrupt the processing of a RegExp bailout and run additional JavaScript, potentially triggering garbage collection when the engine was not expecting it
CVE-2025-1935Medium· 4.3A web page could trick a user into setting that site as the default handler for a custom URL protocol
CVE-2025-1936High· 7.3jar: URLs retrieve local file content packaged in a ZIP archive
CVE-2025-1931High· 7.5It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash
CVE-2025-1932High· 8.1An inconsistent comparator in xslt/txNodeSorter could have resulted in potentially exploitable out-of-bounds access
CVE-2025-1933High· 7.6On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory