What’s Vulnerable › Vulnerabilities

CVE-2022-23135

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-02-24 · updated 2026-06-17
• Weakness: CWE-22

Description

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

How to fix

Upgrade to a fixed version: ZTE Zxhn F477 Firmware 9.0.0p1n29; ZTE Zxhn F677 Firmware 9.0.0p1n29. Check the vendor advisory for mitigations.

References

• https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1023444
• https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1023444

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