What’s Vulnerable › Vulnerabilities

CVE-2026-75616: Command Injection in Router Web Management Interface

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-19 · updated 2026-09-08
• Weakness: CWE-78

Description

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.

Affected products

• TP-Link Systems Inc. Archer C20 v6: before 0.9.1 — fixed in 0.9.1

How to fix

Upgrade to a fixed version: TP-Link Systems Inc. Archer C20 v6 0.9.1. Check the vendor advisory for mitigations.

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

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