CVE-2019-17026
HIGH8.8⚠ KEVEPSS 56.2%firefox-esr - security update
Published: 3/2/2020Modified: 4/28/2026Added to CISA KEV: 11/3/2021
Description
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.
Affected packages (3)
- Debian/firefox-esrfrom 0, < 68.4.1esr-1
- Debian/firefox-esrfrom 0, < 68.4.1esr-1~deb8u1
- Debian/thunderbirdfrom 0, < 1:68.4.1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |