CVE-2026-36741
High
Description
U-SPEED AC1200 Gigabit Wi-Fi Router (Model: T18-21K) V1.0 is vulnerable to Command Injection. The Network Time Protocol (NTP) configuration interface does not properly sanitize user-supplied input. An authenticated user with permission to configure NTP settings can inject arbitrary system commands through crafted input fields. These commands are executed with elevated privileges, leading to potential full system compromise.
SeverityHigh
CVSS7.2
Exploit probability—
ProductU-speed T18-21k Firmware
PublishedMay 13, 2026
First seenMay 13, 2026
Weakness typeCWE-77Command injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| u-speed t18-21k_firmware | 1.0 | — |
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