D-Link DWR-M961 up to 1.1.5_C1_202607071107 CGI Interface app.cgi netDig.ping.dst command injection

Summaryinfo

A vulnerability was found in D-Link DWR-M961 up to 1.1.5_C1_202607071107. It has been declared as very critical. This issue affects some unknown processing of the file app.cgi of the component CGI Interface. The manipulation of the argument netDig.ping.dst results in command injection. This vulnerability is cataloged as CVE-2026-71956. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in D-Link DWR-M961 up to 1.1.5_C1_202607071107. It has been classified as very critical. Affected is some unknown processing of the file app.cgi of the component CGI Interface. The manipulation of the argument netDig.ping.dst with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

D-Link DWR-M961 devices with hardware version C1 and software version 1.1.2_C1_202602110044 contain a command injection vulnerability in the app.cgi interface. A remote attacker can inject arbitrary malicious commands into the netDig.ping.dst field, resulting in command execution with root privileges.

The advisory is shared for download at supportannouncement.us.dlink.com. This vulnerability is traded as CVE-2026-71956 since 08/08/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 08/08/2026). The MITRE ATT&CK project declares the attack technique as T1202.

Upgrading to version 1.1.5_C1_202607071108 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• D-Link

Name

• DWR-M961

Version

• 1.1.5_C1_202607071107

License

• commercial

Website

• Vendor: https://www.dlink.com/

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