CVE-2020-24349

Name: CVE-2020-24349
Creator: NVD / NIST
Published: 2020-08-13T19:15:14.05+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.53%

Last modified Jun 17, 2026

CVE-2020-24349 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. njs through 0.4.3, used in NGINX, allows control-flow hijack in njs_value_property in njs_value.c. NOTE: the vendor considers the issue to be "fluff" in the NGINX use case because there is no remote attack surface.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

Description

njs through 0.4.3, used in NGINX, allows control-flow hijack in njs_value_property in njs_value.c. NOTE: the vendor considers the issue to be "fluff" in the NGINX use case because there is no remote attack surface.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.53%

41.0th 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://cwe.mitre.org/data/definitions/416.htmlThird Party Advisory
https://github.com/nginx/njs/issues/324Exploit, Issue Tracking, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20200918-0001/Third Party Advisory
https://cwe.mitre.org/data/definitions/416.htmlThird Party Advisory
https://github.com/nginx/njs/issues/324Exploit, 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-2020-24349?

How severe is CVE-2020-24349?

CVE-2020-24349 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.

How do I fix CVE-2020-24349?

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-2020-24349?

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

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Source: NVD / NIST