CVE-2020-23321: Jerryscript

Critical severity, CVSS 9.8. EPSS: 1.3% chance of exploitation in the next 30 days.

There is a heap-buffer-overflow at lit-strings.c:431 in lit_read_code_unit_from_utf8 in JerryScript 2.2.0.

Affected products

• Jerryscript Jerryscript: version 2.2.0 only

Published 2021-06-10. Last modified 2026-06-17.