CVE-2026-75616
Command Injection in Router Web Management Interface
HIGH 8.5EPSS 2.8%
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
- TP-Link Systems Inc. · Archer C20 v6
- CVSS v4.0 CNA
- 8.5 HIGH
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v3.1 NVD
- 6.8 MEDIUM
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - EPSS
- 2.83% chance of exploitation in the next 30 days, 86th percentile
- Published
- 2026-08-19
- Updated
- 2026-08-20
Proof-of-concept exploits (1)
- totekuh/CVE-2026-756161★ · 2026-08-22
Security advisories
- https://www.tp-link.com/en/support/faq/5252
- https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware
- https://www.tp-link.com/us/support/download/archer-c20/v6.46/#Firmware