CVE-2026-75118
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| TP-Link Systems Inc. | TL-MR100 v3.20 | 0 < (EU)_1.3.0 Build 260609 | affected |
Weaknesses
- CWE-121: CWE-121 Stack-based buffer overflow
References
- https://www.tp-link.com/en/support/download/tl-mr100/v3.20/#Firmware
- https://www.tp-link.com/en/support/faq/5271/
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