CVE-2026-75118: TP-Link Systems Inc Tl-MR100 v3.20

High severity, CVSS 8.7. EPSS: 0.4% chance of exploitation in the next 30 days.

A pre-authentication stack-based buffer overflow vulnerability exists in the http_gdpr_decrypt function of TL-MR100 V3.20 due to insufficient bounds checking of encrypted requests to the /cgi/login endpoint. An adjacent unauthenticated attacker with access to the router's web management interface can trigger memory corruption and potentially achieve arbitrary code execution. Successful exploitation can overwrite saved control-flow data on the httpd process stack prior to authentication, resulting in a service crash or potential arbitrary code execution in the context of the affected process.

Affected products

• TP-Link Systems Inc Tl-MR100 v3.20

Published 2026-08-28. Last modified 2026-09-01.