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.

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Archer C20 Firmware Subscribe
Archer C20 V6 Subscribe
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Tue, 08 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Tp-link archer C20
Tp-link archer C20 Firmware
CPEs cpe:2.3:h:tp-link:archer_c20:6.0:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:archer_c20_firmware:*:*:*:*:*:*:*:*
Vendors & Products Tp-link archer C20
Tp-link archer C20 Firmware
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}


Fri, 21 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Tp-link
Tp-link archer C20 V6
Vendors & Products Tp-link
Tp-link archer C20 V6

Wed, 19 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
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.
Title Command Injection in Router Web Management Interface
Weaknesses CWE-78
References
Metrics cvssV4_0

{'score': 8.5, 'vector': '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: TPLink

Published:

Updated: 2026-08-20T15:26:33.291Z

Reserved: 2026-08-17T23:56:24.056Z

Link: CVE-2026-75616

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-08-19T21:17:37.917

Modified: 2026-09-08T21:12:13.843

Link: CVE-2026-75616

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-10T04:30:06Z

Weaknesses