CVE-2025-4340: d-link dir-806a1 Injection

Vulnerability summary

CVE-2025-4340 is a critical (CVSS 9.8) Injection vulnerability in d-link dir-806a1. EPSS estimates a 5.25% chance of exploitation in the next 30 days, higher than 92.4% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

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

Description

A vulnerability classified as critical has been found in D-Link DIR-890L and DIR-806A1 up to 100CNb11/108B03. Affected is the function sub_175C8 of the file /htdocs/soap.cgi. The manipulation leads to 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-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
• 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.