CVE-2022-25213: Phicomm k2 Firmware

Medium severity, CVSS 6.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Improper physical access control and use of hard-coded credentials in /etc/passwd permits an attacker with physical access to obtain a root shell via an unprotected UART port on the device. The same port exposes an unauthenticated Das U-Boot BIOS shell.

Affected products

• Phicomm k2 Firmware: up to and including 22.5.9.163
• Phicomm k2g Firmware: up to and including 22.6.3.20
• Phicomm k2p Firmware: up to and including 20.4.1.7
• Phicomm k3 Firmware: up to and including 21.5.37.246
• Phicomm k3c Firmware: up to and including 32.1.15.93

Published 2022-03-10. Last modified 2026-06-17.