CVE-2021-33439

MEDIUM

cesanta mjs < 2.20.0 - Integer Overflow in gc_compact_strings

Title source: llm
STIX 2.1

Description

An issue was discovered in mjs (mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There is Integer overflow in gc_compact_strings() in mjs.c.

References (2)

Core 2
Core References
Exploit, Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://github.com/cesanta/mjs/issues/159

Scores

CVSS v3 5.5
EPSS 0.0030
EPSS Percentile 21.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Details

CWE
CWE-190 CWE-476
Status published
Products (1)
cesanta/mjs < 2.20.0
Published Jul 26, 2022
Tracked Since Feb 18, 2026