CVE-2026-75489

EUVD-2026-125267

13.11.2026, 10:18

Cudy TR3000 before 2.5.42 contains an insufficient verification of data authenticity vulnerability in the mt_wifi Smart Mesh Technology (SMT) onboarding, which protects messages only with an AES-CBC key derived from public values and a CRC32 check. Adjacent unauthenticated attackers can forge SMT messages in Probe Request vendor IEs carrying an attacker-chosen SSID and pre-shared key, forcing unpaired devices to join attacker-controlled access points.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	6.8 MEDIUM	ADJACENT_NETWORK	HIGH	NONE	CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

Awaiting analysis

This vulnerability is currently awaiting analysis.

Base Score

CVSS 3.x

EPSS Score

Percentile: 12.24%

Common Weakness Enumeration

CWE-345 - Insufficient Verification of Data Authenticity
The software does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

References

https://d1jvyy13vm72kv.cloudfront.net/device/upgrade/m_upgrade_TR3000_256MB_Flash-R103-2.5.42-20261103-160202-sysupgrade_82672.zip

https://www.cudy.com/en-us/pages/download-center/tr3000-1-0

https://www.vulncheck.com/advisories/cudy-tr3000-before-2.5.42-smt-message-forgery-via-probe-request-vendor-ie