CVE-2018-16844

—

CVSS 3.1

7.5 high

EPSS

12%p96

Published

Nov 7, 2018 (Nov 7, 2018)

Modified

Jun 17, 2026

Description

nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive CPU usage. This issue affects nginx compiled with the ngx_http_v2_module (not compiled by default) if the 'http2' option of the 'listen' directive is used in a configuration file.

Vendors: f5 debian canonical apple
Products: nginx, debian linux, ubuntu linux, xcode
Weakness: CWE-400
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (12.4%)

In the news1 stories

Nginx server flaws expose more than a million of servers to DoS attacks

Security AffairsNov 10, 08:56 UTC · Nov 10, 2018Vulnerability CVE-2018-16843 CVE-2018-16844 CVE-2018-16845