CVE-2026-82539

CriticalCVSS 9.1/10Last modified Sep 1, 2026

Description

A vulnerability was determined in TOTOLINK A720R 4.1.5cu.630_B20250509. This impacts the function setMacFilterRules of the file cstecgi.cgi of the component MAC Filtering. Executing a manipulation of the argument desc can lead to memory corruption. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-119

Affected software

Vendor	Product	Versions
TOTOLINK	A720R	4.1.5cu.630_B20250509

References

Timeline

Published: Aug 30, 2026
Last modified: Sep 1, 2026
NVD status: Deferred

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