CVE-2023-27727

Name: CVE-2023-27727
Creator: NVD / NIST
Published: 2023-04-09T20:15:56.65+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.73%

Last modified Jun 17, 2026

CVE-2023-27727 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function njs_function_frame at src/njs_function.h.. EPSS estimates a 0.73% chance of exploitation in the next 30 days.

Description

Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function njs_function_frame at src/njs_function.h.

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

0.73%

49.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
F5	Njs	0.7.10

References

https://github.com/nginx/njs/issues/617Exploit, Issue Tracking
https://github.com/nginx/njs/issues/617Exploit, Issue Tracking

Timeline

Published: Apr 9, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-27727?

Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function njs_function_frame at src/njs_function.h.

How severe is CVE-2023-27727?

CVE-2023-27727 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.

How do I fix CVE-2023-27727?

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-2023-27727?

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

Scan your code now

Source: NVD / NIST