Vulnerability identifier: #VU53543

Vulnerability risk: High

CVSSv3.1: 7.3 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2021-23017

CWE-ID: CWE-193

Exploitation vector: Network

Exploits in database: 3

• July 31, 2022
  • Nginx 1.20.0 - Denial of Service (DOS) [Exploit-DB]
• July 3, 2022
  • CVE-2021-23017-PoC (PoC for Nginx 0.6.18 - 1.20.0 Memory Overwrite Vulnerability CVE-2021-23017) [Github]
• May 25, 2021
  • X41-2021-002: nginx Resolver Copy Off By One Heap Corruption [Custom exploits]

Impact: Code execution

Vulnerable software:
nginx
Server applications / Web servers

Vendor: NGINX