CVE-2026-100813High· 8.8▾ TwilightInvalid pointer in the JavaScript Engine: JIT component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0 · 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 Sep 30.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
— → 8.8
none → high
0.2%
0.2% → 0.2%
Last analysed / modified upstream
Invalid pointer in the JavaScript Engine: JIT component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
firefox < 157.0.0thunderbird < 157.0Upgrade past the affected range:
firefox 157.0.0thunderbird 157.0Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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