CVE-2026-71951 in DWR-M961
Summary
by MITRE • 08/08/2026
D-Link DWR-M961 devices with hardware version C1 and firmware version before 1.1.5_C1_202607071108 contain a command injection vulnerability in the /boafrm/formIMEISetup interface. A remote attacker can inject arbitrary malicious commands into the IMEI_value field, resulting in command execution with root privileges.
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Analysis
by VulDB Data Team • 08/08/2026
This vulnerability exists within D-Link DWR-M961 wireless routers running hardware version C1 and firmware versions prior to 1.1.5_C1_202607071108. The issue manifests through the /boafrm/formIMEISetup web interface where input validation is insufficiently implemented for the IMEI_value parameter. This command injection flaw allows remote attackers to execute arbitrary commands with root privileges by manipulating the IMEI_value field, effectively compromising the device's administrative control.
The technical exploitation occurs through improper sanitization of user-supplied input within the web application layer. When the system processes the IMEI_value parameter, it fails to properly validate or escape special characters that could be interpreted as shell commands. This vulnerability aligns with CWE-77 and CWE-94 categories, representing command injection and code injection weaknesses respectively. The ATT&CK framework categorizes this under T1059.001 for command and scripting interpreter with legitimate system tools being used for execution.
The operational impact of this vulnerability is severe as it provides attackers with complete administrative control over affected devices. Remote command execution with root privileges enables adversaries to modify device configurations, install malicious software, exfiltrate sensitive data, or establish persistent backdoors. The affected D-Link DWR-M961 routers serve as critical networking equipment in enterprise and residential environments, making this vulnerability particularly dangerous for network infrastructure compromise.
Mitigation strategies should include immediate firmware updates from D-Link to version 1.1.5_C1_202607071108 or later, which address the input validation issues within the affected interface. Network segmentation and access control measures should be implemented to limit exposure of these devices to untrusted networks. Regular security audits of network equipment and monitoring for unusual network traffic patterns can help detect exploitation attempts. Additionally, implementing network intrusion detection systems with signatures for known command injection patterns can provide early warning capabilities against such attacks.