CVE-2025-9727: d-link dir-816l Command Injection

Vulnerability summary

CVE-2025-9727 is a critical (CVSS 9.8) Command Injection vulnerability in d-link dir-816l. EPSS estimates a 4.37% chance of exploitation in the next 30 days, higher than 91.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 31-08-2025
   PublishedVulnerability first disclosed.
2. 23-10-2025
   Last modifiedVulnerability information updated.

Description

A weakness has been identified in D-Link DIR-816L 206b01. Affected by this issue is the function soapcgi_main of the file /soap.cgi. This manipulation of the argument service causes os command injection. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be exploited. 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.