CVE-2019-7401

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-02-08 · updated 2026-06-17
Weakness: CWE-787

Description

NGINX Unit before 1.7.1 might allow an attacker to cause a heap-based buffer overflow in the router process with a specially crafted request. This may result in a denial of service (router process crash) or possibly have unspecified other impact.

Affected products

F5 NGINX Unit: from 0.3 before 1.7.1 — fixed in 1.7.1

How to fix

Upgrade to a fixed version: F5 NGINX Unit 1.7.1. Check the vendor advisory for mitigations.

References

http://hg.nginx.org/unit/file/tip/CHANGES
http://mailman.nginx.org/pipermail/unit/2019-February/000113.html
http://unit.nginx.org/CHANGES.txt
http://www.securityfocus.com/bid/106956
http://hg.nginx.org/unit/file/tip/CHANGES
http://mailman.nginx.org/pipermail/unit/2019-February/000113.html
http://unit.nginx.org/CHANGES.txt
http://www.securityfocus.com/bid/106956

Get alerted when CVE-2019-7401 or the next vulnerability affects your stack