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.

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Fri, 28 Aug 2026 22:00:00 +0000

Type Values Removed Values Added
Description 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.
Title http_gdpr_decrypt Pre-Authentication Stack-Based Buffer Overflow
Weaknesses CWE-121
References
Metrics cvssV4_0

{'score': 8.7, 'vector': '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'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: TPLink

Published:

Updated: 2026-08-28T20:31:03.977Z

Reserved: 2026-08-17T18:18:43.498Z

Link: CVE-2026-75118

cve-icon Vulnrichment

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cve-icon NVD

Status : Received

Published: 2026-08-28T22:16:52.880

Modified: 2026-08-28T22:16:52.880

Link: CVE-2026-75118

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses