CVE-2021-45401

Name: CVE-2021-45401
Creator: NVD / NIST
Published: 2022-02-18T18:15:10.133+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.53%

Last modified Jun 17, 2026

CVE-2021-45401 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 2.53% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.53%

82.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-77

Affected Software

Vendor	Product	Versions
Tendacn	Ac10u Firmware	15.03.06.49_multi

References

https://github.com/Quadron-Research-Lab/Hardware-IoT/blob/main/Tenda_AC10U_command_injection_RCE.pdfExploit, Third Party Advisory
https://github.com/Quadron-Research-Lab/Hardware-IoT/blob/main/Tenda_AC10U_command_injection_RCE.pdfExploit, Third Party Advisory

Timeline

Published: Feb 18, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-45401?

How severe is CVE-2021-45401?

CVE-2021-45401 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.53% probability of exploitation in the next 30 days.

How do I fix CVE-2021-45401?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-45401?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST