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.
Affected products
u-speed: t18-21k firmware; u-speed: t18-21k
References3
- github.com/N0tMilk/vulnerability-research/tree/main/IoT/CVE-202… ExploitThird Party Advisory
- github.com/N0tMilk/vulnerability-research/tree/main/IoT/CVE-202… ExploitThird Party Advisory
- github.com/N0tMilk/vulnerability-research Third Party Advisory
Metrics
- CVSS 3.1
-
7.2
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 2% percentile: 82 · as of 14 November 2026
- CWE
- CWE-77
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.