CVE-2025-5620: d-link dir-816 Command Injection

Vulnerability summary

CVE-2025-5620 is a critical (CVSS 9.8) Command Injection vulnerability in d-link dir-816. EPSS estimates a 7.68% chance of exploitation in the next 30 days, higher than 94.5% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 04-06-2025
   PublishedVulnerability first disclosed.
2. 05-06-2025
   Last modifiedVulnerability information updated.

Description

A vulnerability, which was classified as critical, was found in D-Link DIR-816 1.10CNB05. Affected is the function setipsec_config of the file /goform/setipsec_config. The manipulation of the argument localIP/remoteIP leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

• 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.
• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.