CVE-2020-19692

Name: CVE-2020-19692
Creator: NVD / NIST
Published: 2023-04-04T15:15:07.653+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.32%

Last modified Jun 17, 2026

CVE-2020-19692 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Buffer Overflow vulnerabilty found in Nginx NJS v.0feca92 allows a remote attacker to execute arbitrary code via the njs_module_read in the njs_module.c file.. EPSS estimates a 1.32% chance of exploitation in the next 30 days.

Description

Buffer Overflow vulnerabilty found in Nginx NJS v.0feca92 allows a remote attacker to execute arbitrary code via the njs_module_read in the njs_module.c file.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.32%

67.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
F5	Njs	< 0.3.4

References

https://github.com/nginx/njs/issues/187Exploit, Issue Tracking
https://github.com/nginx/njs/issues/187Exploit, Issue Tracking

Timeline

Published: Apr 4, 2023
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-19692?

Buffer Overflow vulnerabilty found in Nginx NJS v.0feca92 allows a remote attacker to execute arbitrary code via the njs_module_read in the njs_module.c file.

How severe is CVE-2020-19692?

CVE-2020-19692 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.32% probability of exploitation in the next 30 days.

How do I fix CVE-2020-19692?

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-2020-19692?

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

Scan your code now

Source: NVD / NIST