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.

Category

6.8
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Third-Party Advisory tenable.com
Affected: n/a Trendnet AC2600 TEW-827DRU
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-20161?
CVE-2021-20161 has been scored as a medium severity vulnerability.
How to fix CVE-2021-20161?
To fix CVE-2021-20161, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20161 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-20161 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20161?
CVE-2021-20161 affects n/a Trendnet AC2600 TEW-827DRU.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.