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.
Published: 2026-08-28
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 01 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Mon, 31 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Tp-link
Tp-link tl-mr100 V3.20
Vendors & Products Tp-link
Tp-link tl-mr100 V3.20

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'}


Subscriptions

Tp-link Tl-mr100 V3.20
cve-icon MITRE

Status: PUBLISHED

Assigner: TPLink

Published:

Updated: 2026-09-01T14:46:29.955Z

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

Link: CVE-2026-75118

cve-icon Vulnrichment

Updated: 2026-09-01T14:46:26.270Z

cve-icon NVD

Status : Deferred

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

Modified: 2026-09-01T20:50:58.753

Link: CVE-2026-75118

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-31T21:24:34Z

Weaknesses