CVE-2021-46343

Name: CVE-2021-46343
Creator: NVD / NIST
Published: 2022-01-20T22:15:08.873+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.62%

Last modified Jun 17, 2026

CVE-2021-46343 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. There is an Assertion 'context_p->token.type == LEXER_LITERAL' failed at /jerry-core/parser/js/js-parser-expr.c in JerryScript 3.0.0.. EPSS estimates a 0.62% chance of exploitation in the next 30 days.

Description

There is an Assertion 'context_p->token.type == LEXER_LITERAL' failed at /jerry-core/parser/js/js-parser-expr.c in JerryScript 3.0.0.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.62%

45.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-617

Affected Software

Vendor	Product	Versions
Jerryscript	Jerryscript	3.0.0

References

https://github.com/jerryscript-project/jerryscript/issues/4921Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/jerryscript-project/jerryscript/issues/4921Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2021-46343?

There is an Assertion 'context_p->token.type == LEXER_LITERAL' failed at /jerry-core/parser/js/js-parser-expr.c in JerryScript 3.0.0.

How severe is CVE-2021-46343?

CVE-2021-46343 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.

How do I fix CVE-2021-46343?

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-2021-46343?

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

Scan your code now

Source: NVD / NIST