CVE-2021-43453

PoC —

CVSS 3.1

9.8 critical

EPSS

1%p68

Published

Apr 7, 2022 (Apr 7, 2022)

Modified

Jun 17, 2026

Description

A Heap-based Buffer Overflow vulnerability exists in JerryScript 2.4.0 and prior versions via an out-of-bounds read in parser_parse_for_statement_start in the js-parser-statm.c file. This issue is similar to CVE-2020-29657.

Vendors: jerryscript
Products: jerryscript
Weakness: CWE-125
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.3%)

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