CVE-2025-5621 - CVE House

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Status published Medium CVE-2025-5621

D-Link DIR-816 qosClassifier os command injection

6.9 CVSS

Vulnerability Description

A vulnerability has been found in D-Link DIR-816 1.10CNB05 and classified as critical. Affected by this vulnerability is the function qosClassifier of the file /goform/qosClassifier. The manipulation of the argument dip_address/sip_address leads to os command injection. The attack can be launched 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

pjqwudi (VulDB User)

References

More from D-Link

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D-Link DI-8400 yyxz.asp yyxz_dlink_asp stack-based overflow

D-Link DI-7400G+ mng_platform.asp sub_478D28 command injection

D-Link DIR-852 SOAP Service soap.cgi soapcgi_main os command injection

D-Link DI-500WF jhttpd version_upgrade.asp os command injection

D-Link DIR-816L soap.cgi soapcgi_main os command injection

Affected Vendor

D-Link

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Affected Software

DIR-816

Vulnerable Versions:

1.10CNB05

Timeline

Official Publish: June 4th, 2025

Last Modified: June 5th, 2025

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1059 Command and Scripting Interpreter

T1068 Exploitation for Privilege Escalation

Privilege Escalation

T1005 Data from Local System

T1041 Exfiltration Over C2 Channel

T1105 Ingress Tool Transfer

Command and Control