CVE-2021-26194

MEDIUM

JerryScript 2.4.0 - Use-After-Free in ecma_is_lexical_environment

Title source: llm

An issue was discovered in JerryScript 2.4.0. There is a heap-use-after-free in ecma_is_lexical_environment in the ecma-helpers.c file.

Core 1

Core References

Exploit, Issue Tracking, Patch, Third Party Advisory x_refsource_confirm

CVSS v3 6.5

EPSS 0.0094

EPSS Percentile 56.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE

CWE-416

Status published

Products (1)

jerryscript/jerryscript 2.4.0

Published Jun 10, 2021

Tracked Since Feb 18, 2026