CVE-2021-43474: dlink dir-823g_firmware Command Injection

Vulnerability summary

CVE-2021-43474 is a critical (CVSS 9.8) Command Injection vulnerability in dlink dir-823g_firmware. EPSS estimates a 3.13% chance of exploitation in the next 30 days, higher than 87.6% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 07-04-2022
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

An Access Control vulnerability exists in D-Link DIR-823G REVA1 1.02B05 (Lastest) via any parameter in the HNAP1 function

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.