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High · 8.5 Public exploit CVE-2026-75616 EUVD-2026-63081GHSA-5w3w-j62r-pw52

Command Injection in Router Web Management Interface

Published Aug 19, 2026 · Updated Aug 20, 2026 · Assigned by TPLink

Vendor: TP-Link Systems Product: Archer C20 v6 Category: Network devices

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

VendorProductAffectedFixed
TP-Link Systems Archer C20 v6 < EU_0.9.1 Build 260811, < US_0.9.1 Build 260812, < RU_0.9.1 Build 260812 EU_0.9.1 Build 260811

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

  • totekuh/CVE-2026-75616 ★ 1 · Aug 22, 2026

    PoC for CVE-2026-75616, an authenticated OS command injection in TP-Link Archer C20 v6 firmware

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References