| Title | TOTOLINK A800R V4.1.2cu.5137_B20200730 Buffer Overflow |
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| Description | The TOTOLINK A800R router, firmware version V4.1.2cu.5137_B20200730, contains a buffer overflow vulnerability in the setAppEasyWizardConfig interface of /lib/cste_modules/app.so. The vulnerability occurs because the apcliSsid parameter is not properly validated for length, allowing remote attackers to trigger a buffer overflow, potentially leading to arbitrary code execution or denial of service. |
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| Source | ⚠️ https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A800R/01_Buffer_Overflow_setAppEasyWizardConfig.md |
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| User | xuanyu (UID 36103) |
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| Submission | 03/30/2026 21:02 (3 months ago) |
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| Moderation | 04/12/2026 20:06 (13 days later) |
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| Status | Accepted |
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| VulDB entry | 357037 [Totolink A800R 4.1.2cu.5137_B20200730 /lib/cste_modules/app.so setAppEasyWizardConfig apcliSsid buffer overflow] |
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| Points | 20 |
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