Vulnerability Details CVE-2026-36738
U-SPEED AC1200 Gigabit Wi-Fi Router (Model: T18-21K) V1.0 is vulnerable to Incorrect Access Control. The device exposes a UART interface that lacks authentication, authorization, or access control mechanisms. An attacker with physical access to the UART pins can connect to the interface and gain unrestricted access to device functionality.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 10.2%
CVSS Severity
CVSS v3 Score 6.8
References
Products affected by CVE-2026-36738
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cpe:2.3:h:u-speed:t18-21k:-
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cpe:2.3:o:u-speed:t18-21k_firmware:1.0