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Vulnerability record · CVE-2021-45401 · published 18 February 2022

CVE-2021-45401: Tendacn ac10u firmware command injection vulnerability

Tendacn · Ac10u Firmware

A Command injection vulnerability exists in Tenda AC10U AC1200 Smart Dual-band Wireless Router AC10U V1.0 Firmware V15.03.06.49_multi via the setUsbUnload functionality. The vulnerability is caused because the client controlled "deviceName" value is passed directly to the "doSystemCmd" function.

9.8 CVSS 3.1 Critical EPSS 2.5% · top 15.7% CWE-77 · Command injection
9.8CVSS 3.1 base score, v2 7.5
2.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A Command injection vulnerability exists in Tenda AC10U AC1200 Smart Dual-band Wireless Router AC10U V1.0 Firmware V15.03.06.49_multi via the setUsbUnload functionality. The vulnerability is caused because the client controlled "deviceName" value is passed directly to the "doSystemCmd" function.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/Quadron-Research-Lab/Hardware-IoT/blob/main/Tenda_AC10U_command_injection_RCE.pdf ExploitThird Party Advisory
https://github.com/Quadron-Research-Lab/Hardware-IoT/blob/main/Tenda_AC10U_command_injection_RCE.pdf ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-0932Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability, which was classified as critical, has been found in Tenda AC10U 15.03.06.49_multi_TDE01. This issue affects the function setSmartPow…EPSS 0.89%9.8CVE-2024-0931Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability classified as critical was found in Tenda AC10U 15.03.06.49_multi_TDE01. This vulnerability affects the function saveParentControlInf…EPSS 0.89%9.8CVE-2024-0930Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability classified as critical has been found in Tenda AC10U 15.03.06.49_multi_TDE01. This affects the function fromSetWirelessRepeat. The ma…EPSS 15%9.8CVE-2024-0929Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda AC10U 15.03.06.49_multi_TDE01. It has been rated as critical. Affected by this issue is the function fromNatStatic…EPSS 1.1%9.8CVE-2024-0928Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda AC10U 15.03.06.49_multi_TDE01. It has been declared as critical. Affected by this vulnerability is the function fr…EPSS 1.1%9.8CVE-2024-0927Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda AC10U 15.03.06.49_multi_TDE01. It has been classified as critical. Affected is the function fromAddressNat. The ma…EPSS 0.84%9.8CVE-2024-0925Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability has been found in Tenda AC10U 15.03.06.49_multi_TDE01 and classified as critical. This vulnerability affects the function formSetVirt…EPSS 0.91%9.8CVE-2024-0926Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda AC10U 15.03.06.49_multi_TDE01 and classified as critical. This issue affects the function formWifiWpsOOB. The mani…EPSS 0.91%

Source: NIST National Vulnerability Database (record CVE-2021-45401), CISA KEV, FIRST EPSS (scores of 2026-10-13). This page is refreshed as NVD updates the record.