CVE-2025-0243Medium· 5.1▾ SunlitMemory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 28.1 · likelihood 0.1 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.
firefox < 128.6.0firefox < 133.0thunderbird < 128.6.0thunderbird >= 129.0, < 134.0Upgrade past the affected range:
firefox 133.0thunderbird 134.0Connected by shared product, vendor, weakness, or advisory.
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