CVE-2026-75616

Command Injection in Router Web Management Interface

Published Aug 19, 2026 CVSS 4.0 · 8.5 High EPSS 2.8% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

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'}

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
TPLink
Published
Updated
Aug 20, 2026, 3:26 PM
Reserved
Aug 17, 2026, 11:56 PM
Status
Analyzed
Published
Aug 19, 2026, 9:17 PM
Modified
Sep 8, 2026, 9:12 PM