Medium severity6.8NVD Advisory· Published Dec 30, 2021· Updated Jun 17, 2026
CVE-2021-20161
CVE-2021-20161
Description
Trendnet AC2600 TEW-827DRU version 2.08B01 does not have sufficient protections for the UART functionality. A malicious actor with physical access to the device is able to connect to the UART port via a serial connection. No username or password is required and the user is given a root shell with full control of the device.
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Affected products
2- Trendnet/AC2600 TEW-827DRUdescription
- Range: 2.08B01
Patches
Vulnerability mechanics
References
1- www.tenable.com/security/research/tra-2021-54nvdThird Party Advisory
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