CVE-2026-12290High· 8.1▾ TwilightMemory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 44.6 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Jul 30.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.4%
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
firefox < 115.37.0firefox < 152.0.0firefox >= 140.0, < 140.12.0thunderbird < 152.0.0thunderbird >= 140.0, < 140.12.0Upgrade past the affected range:
firefox 140.12.0thunderbird 140.12.0Connected by shared product, vendor, weakness, or advisory.
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CVE-2025-14330Critical· 9.8JIT miscompilation in the JavaScript Engine: JIT component
CVE-2026-118008High· 8.8Privilege escalation in the DOM: Navigation component
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