CVE-2022-23135: ZTE Zxhn f477 Firmware

Medium severity, CVSS 6.5. EPSS: 1.4% chance of exploitation in the next 30 days.

There is a directory traversal vulnerability in some home gateway products of ZTE. Due to the lack of verification of user modified destination path, an attacker with specific permissions could modify the FTP access path to access and modify the system path contents without authorization, which will cause information leak and affect device operation.

Affected products

• ZTE Zxhn f477 Firmware: before 9.0.0p1n29 (fixed in 9.0.0p1n29)
• ZTE Zxhn f677 Firmware: before 9.0.0p1n29 (fixed in 9.0.0p1n29)

Published 2022-02-24. Last modified 2026-06-17.