CVE-2026-51756

—

CVSS 3.1

5.9 medium

EPSS

<1%p27

Published

Sep 1, 2026 (14d ago)

Modified

Sep 1, 2026

Description

Incorrect access control in the meshSlaveUpgfw function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to start firmware flashing using existing upgrade files via sending a crafted MQTT message to the cs_broker component.

Weakness: CWE-284
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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