Submit #754476: D-Link DWR-M960 V1.01.07 Stack-based Buffer Overflowinfo

TitleD-Link DWR-M960 V1.01.07 Stack-based Buffer Overflow
DescriptionDuring a security review of the D-Link DWR-M960 (Hardware B1, Firmware V1.01.07), a buffer overflow vulnerability was discovered in the Port Forwarding configuration endpoint /boafrm/formPortFw. The vulnerability is located within the sub_423E00 function. This function retrieves the submit-url parameter from the incoming HTTP request. When the request includes the save_apply parameter (indicating a configuration save action), the function uses strcpy to copy the content of submit-url into a global variable/buffer named wizard_htm. Due to the lack of proper bounds checking on the input length before the copy operation, a malicious actor can supply an oversized submit-url parameter to overwrite the destination buffer and adjacent memory. This allows for application crashes (DoS) and potentially arbitrary code execution.
Source⚠️ https://github.com/LX-66-LX/cve-new/issues/14
User LX-66-LX (UID 92717)
Submission02/09/2026 06:40 (4 months ago)
Moderation02/20/2026 11:38 (11 days later)
StatusAccepted
VulDB entry347096 [D-Link DWR-M960 1.01.07 Port Forwarding Configuration Endpoint /boafrm/formPortFw sub_423E00 submit-url stack-based overflow]
Points20

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