| Title | D-Link DIR-822k TK_1.00_20250513164613 Buffer Overflow |
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| Description | During a security review of the application, a critical buffer overflow vulnerability was discovered in the “/boafrm/formWanConfigSetup” endpoint. The vulnerability is located within the sub_4138B0 function. This function uses the strcpy function to parse the “submit-url” parameter from an incoming request. Due to the lack of proper bounds checking on the input, a malicious actor can supply an oversized "submit-url" parameter to overwrite the program's stack. This can lead to application crashes, memory corruption, and potentially allow for arbitrary code execution on the server. |
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| Source | ⚠️ https://github.com/QIU-DIE/CVE/issues/35 |
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| User | hhsw34 (UID 91076) |
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| Submission | 11/12/2025 10:41 (5 months ago) |
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| Moderation | 11/22/2025 16:12 (10 days later) |
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| Status | Accepted |
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| VulDB entry | 333318 [D-Link DIR-822K/DWR-M920 1.00_20250513164613/1.1.50 formWanConfigSetup submit-url buffer overflow] |
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| Points | 20 |
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