CVE-2026-75616

An OS command injection vulnerability exists in the web management interface of Archer C20 v6 firmware when processing certain WAN-related configuration operations. An authenticated administrator may exploit insufficient input validation to execute arbitrary system commands, potentially resulting in full device compromise. Successful exploitation may allow arbitrary command execution with elevated privileges, compromising the confidentiality, integrity, and availability of the affected device and network traffic passing through it.

Score

CVSS 4.0 8.5 High

Status

Analyzed - f23511db-6c3e-4e32-a477-6aa17d310630

Published

2026-08-19

Last modified

2026-08-20

Weaknesses

CWE-78

Affected products

• Archer C20 Firmware (Tp-link)
• Archer C20 V6 (Tp-link Systems Inc.)

References

• https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware
• https://www.tp-link.com/en/support/faq/5252/
• https://www.tp-link.com/us/support/download/archer-c20/v6.46/#Firmware