Medium severity6.8NVD Advisory· Published May 13, 2026· Updated Jun 30, 2026
CVE-2026-36738
CVE-2026-36738
Description
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.
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Affected products
2- cpe:2.3:o:u-speed:t18-21k_firmware:1.0:*:*:*:*:*:*:*
- Range: T18-21K V1.0
Patches
Vulnerability mechanics
References
1- github.com/N0tMilk/vulnerability-research/tree/main/IoT/CVE-2026-36738nvdExploitThird Party Advisory
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