| Title | EDIMAX BR6478ACV2 BR6478ACV2_v1.23 Command Injection |
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| Description | The EDIMAX BR6478ACV2_v1.23 firmware has a command injection vulnerability in the `setWAN` function. The `v7/v16/v29` variables receive the `pppUserName/pptpUserName/L2TPUserName` parameters from a POST request. However, since the user can control the input of these variables, the statement `system()` can cause a command injection.
The EDIMAX BR6478ACV2_v1.23 firmware has a buffer overflow vulnerability in the `setWAN` function. The `v26/v27/v28/v39/v40/v41/v44/v45` variables receive the `pptpIPAddr/pptpIPMaskAddr/pptpDfGateway/L2TPIPAddr/L2TPMaskAddr/L2TPDefGateway/dns1/dns2` parameters from a POST request. However, since the user can control the input of these variables, the statement `system()` can cause a buffer overflow. |
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| Source | ⚠️ https://lavender-bicycle-a5a.notion.site/EDIMAX-BR6478ACV2-setWAN-34b53a41781f80b98c4be24d8cae61b1?source=copy_link |
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| User | yhryhryhr_tu (UID 66750) |
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| Submission | 05/25/2026 09:19 (1 month ago) |
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| Moderation | 06/21/2026 06:20 (27 days later) |
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| Status | Accepted |
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| VulDB entry | 372601 [Edimax BR-6478AC V2 1.23 POST Request /goform/setWAN pppUserName/pptpUserName/L2TPUserName command injection] |
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| Points | 17 |
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