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Appaloosa Scout

KEV · Actively exploited

CVE-2019-17026

HIGH 8.8 KEV

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.

Attack vector : Network No privileges required
Show raw CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS 56.19% exploit likely percentile 98.1%

CISA Known Exploited Vulnerability

Added to KEV
2021-11-03
Remediation deadline
2022-05-03
Required action
Apply updates per vendor instructions.
Ransomware
No

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Vulnerable CPE configurations (1)
Vendor Product Versions
mozilla thunderbird
All platforms (wildcard)
<68.4.1
View on NVD ↗ CISA KEV catalog ↗