CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVE-2019-17026
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.
Severity
- EPSS
- 46% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
- CISA KEV
- listed 2021-11-03, due 2022-05-03
- CWE
- CWE-843
- Published
- Modified
- Record from
- the NVD, synced
Affected
- canonical:ubuntu_linux
- mozilla:firefox
- mozilla:thunderbird