CVE-2021-41682

Name: CVE-2021-41682
Creator: NVD / NIST
Published: 2022-06-20T14:15:08.947+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.71%

Last modified Jun 17, 2026

CVE-2021-41682 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. There is a heap-use-after-free at ecma-helpers-string.c:1940 in ecma_compare_ecma_non_direct_strings in JerryScript 2.4.0. EPSS estimates a 0.71% chance of exploitation in the next 30 days.

Description

There is a heap-use-after-free at ecma-helpers-string.c:1940 in ecma_compare_ecma_non_direct_strings in JerryScript 2.4.0

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.71%

48.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Jerryscript	Jerryscript	2.4.0

References

https://github.com/jerryscript-project/jerryscript/issues/4747Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/jerryscript-project/jerryscript/issues/4747Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Jun 20, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41682?

There is a heap-use-after-free at ecma-helpers-string.c:1940 in ecma_compare_ecma_non_direct_strings in JerryScript 2.4.0

How severe is CVE-2021-41682?

CVE-2021-41682 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.71% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41682?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41682?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST