CVE-2022-43284

Name: CVE-2022-43284
Creator: NVD / NIST
Published: 2022-10-28T21:15:10.083+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.80%

Last modified Jun 17, 2026

CVE-2022-43284 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Nginx NJS v0.7.2 to v0.7.4 was discovered to contain a segmentation violation via njs_scope_valid_value at njs_scope.h. NOTE: the vendor disputes the significance of this report because NJS does not operate on untrusted input.. EPSS estimates a 0.80% chance of exploitation in the next 30 days.

Description

Nginx NJS v0.7.2 to v0.7.4 was discovered to contain a segmentation violation via njs_scope_valid_value at njs_scope.h. NOTE: the vendor disputes the significance of this report because NJS does not operate on untrusted input.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.80%

51.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
F5	Njs	>= 0.7.2, <= 0.7.4

References

https://github.com/nginx/njs/issues/470Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/nginx/njs/issues/529Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/nginx/njs/issues/470Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/nginx/njs/issues/529Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Oct 28, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-43284?

How severe is CVE-2022-43284?

CVE-2022-43284 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.80% probability of exploitation in the next 30 days.

How do I fix CVE-2022-43284?

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-2022-43284?

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

Scan your code now

Source: NVD / NIST