CVE-2021-44827

There is remote authenticated OS command injection on TP-Link Archer C20i 0.9.1 3.2 v003a.0 Build 170221 Rel.55462n devices vie the X_TP_ExternalIPv6Address HTTP parameter, allowing a remote attacker to run arbitrary commands on the router with root privileges.

• CWE-78

• https://Full-Disclosure.euExploit, Third Party Advisory
• https://full-disclosure.eu/reports/2022/CVE-2021-44827-tplink-authenticated-remote-code-execution.htmlExploit, Third Party Advisory
• https://www.tp-link.com/us/securityVendor Advisory
• https://Full-Disclosure.euExploit, Third Party Advisory
• https://full-disclosure.eu/reports/2022/CVE-2021-44827-tplink-authenticated-remote-code-execution.htmlExploit, Third Party Advisory
• https://www.tp-link.com/us/securityVendor Advisory

Published

Mar 4, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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