CVE-2025-8027Medium· 6.5▾ SunlitOn 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack. Baseline-JIT, however, read the entire 64 bits. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Fire…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · 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
0.4%
On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack. Baseline-JIT, however, read the entire 64 bits. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
firefox < 115.26.0firefox < 141.0firefox >= 128.0, < 128.13.0firefox >= 140.0, < 140.1.0thunderbird < 128.13.0thunderbird < 141.0thunderbird >= 140.0, < 140.1.0Upgrade past the affected range:
firefox 140.1.0thunderbird 140.1.0Connected by shared product, vendor, weakness, or advisory.
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