CVE-2017-9250: Jerryscript

High severity, CVSS 7.5. EPSS: 2.5% chance of exploitation in the next 30 days.

The lexer_process_char_literal function in jerry-core/parser/js/js-lexer.c in JerryScript 1.0 does not skip memory allocation for empty strings, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via malformed JavaScript source code, related to the jmem_heap_free_block function.

Affected products

• Jerryscript Jerryscript: version 1.0 only

Published 2017-05-28. Last modified 2026-06-17.