| Title | Tenda AC7 AC7V1.0 V15.03.06.44 Buffer Overflow |
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| Description | The Tenda AC7V1.0 V15.03.06.44 firmware has a stack overflow vulnerability in the fromSetSysTime function. The tmpstr variable receives the time parameter from a POST request and is assigned to year~sec by sscanf. However, since the user can control the input of time, the statement sscanf(tmpstr, "%[^-]-%[^-]-%[^ ] %[^:]:%[^:]:%s", year, month, day, hour, min, sec); can cause a buffer overflow. The user-provided time can exceed the capacity of the year~sec array, triggering this security vulnerability. |
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| Source | ⚠️ https://lavender-bicycle-a5a.notion.site/Tenda-AC7-fromSetSysTime-32153a41781f801c95b0f8a53eaa9a1f?source=copy_link |
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| User | wxhwxhwxh_mie (UID 66748) |
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| Submission | 03/12/2026 01:51 (4 months ago) |
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| Moderation | 03/27/2026 09:56 (15 days later) |
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| Status | Accepted |
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| VulDB entry | 353861 [Tenda AC7 15.03.06.44 POST Request /goform/SetSysTimeCfg fromSetSysTime stack-based overflow] |
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| Points | 17 |
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