| Title | TOTOLINK T6 V4.1.5cu.748_B20211015 Buffer Overflow |
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| Description | The T6 routers open MQTT service and listen on port 1883. In function recvSlaveUpgstatus. The s buffer is 68 bytes, and the sprintf doesn't check for the length of input.
Attacker can control the saved return address, lead to RCE. |
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| Source | ⚠️ https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/6.md |
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| User | reisen_1943 (UID 76990) |
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| Submission | 07/18/2025 21:37 (12 months ago) |
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| Moderation | 07/19/2025 21:15 (24 hours later) |
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| Status | Accepted |
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| VulDB entry | 317027 [TOTOLINK T6 4.1.5cu.748_B20211015 MQTT Service recvSlaveUpgstatus buffer overflow] |
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| Points | 17 |
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