CVE-2020-24346

Name: CVE-2020-24346
Creator: NVD / NIST
Published: 2020-08-13T19:15:13.88+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.05%

Last modified Jun 17, 2026

CVE-2020-24346 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. njs through 0.4.3, used in NGINX, has a use-after-free in njs_json_parse_iterator_call in njs_json.c.. EPSS estimates a 1.05% chance of exploitation in the next 30 days.

Description

njs through 0.4.3, used in NGINX, has a use-after-free in njs_json_parse_iterator_call in njs_json.c.

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

1.05%

59.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
F5	Njs	<= 0.4.3

References

https://github.com/nginx/njs/issues/325Exploit, Issue Tracking, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20200918-0001/Third Party Advisory
https://github.com/nginx/njs/issues/325Exploit, Issue Tracking, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20200918-0001/Third Party Advisory

Timeline

Published: Aug 13, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-24346?

njs through 0.4.3, used in NGINX, has a use-after-free in njs_json_parse_iterator_call in njs_json.c.

How severe is CVE-2020-24346?

CVE-2020-24346 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.05% probability of exploitation in the next 30 days.

How do I fix CVE-2020-24346?

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-2020-24346?

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

Scan your code now

Source: NVD / NIST