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CVE-2026-75616 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.8 MEDIUMVector:CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware	TPLink	Product
https://www.tp-link.com/en/support/faq/5252/	TPLink	Vendor Advisory
https://www.tp-link.com/us/support/download/archer-c20/v6.46/#Firmware	TPLink	Product

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-78	Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')	TPLink

Affected Products

Product	Versions
tp-link archer c20 firmware	< 0.9.1
CPE cpe:2.3:o:tp-link:archer_c20_firmware:::::::: Remediation No remediation found in references.
tp-link archer c20	6.0
CPE cpe:2.3:h:tp-link:archer_c20:6.0:::::::* Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Sep 8, 2026	Initial Analysis	[email protected]
Aug 20, 2026	CVE Modified	CISA-ADP
Aug 19, 2026	New CVE Received	TPLink