CVSS v3
8.8
HIGH
EPSS Score
64.8%
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1.
Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1.
Yes. CVE-2019-17026 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 5/3/2022.
CVE-2019-17026 has a CVSS v3 base score of 8.8 (HIGH severity).
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Ranked by exploit probability (EPSS).