CVE-2026-75616
Medium
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.
SeverityMedium
CVSS6.8
Exploit probability—
Product
Tp-link Archer C20 Firmware
PublishedAug 19, 2026
First seenAug 19, 2026
Weakness typeCWE-78OS command injection
How to fix
Update
- tp-link archer_c20_firmware0.9.1 or later
Patches
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tp-link archer_c20_firmware | v < 0.9.1 | 0.9.1 |
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