What is CVE-2025-64055?

CVE-2025-64055 is a critical-severity vulnerability in Fanvil X210, classified under Improper Authentication. CVSS score: 9.8/10. Published 2025-12-03.

How severe is CVE-2025-64055?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Fanvil X210

CVE-2025-64055

An issue was discovered in Fanvil x210 V2 2.12.20 allowing unauthenticated attackers on the local network to access administrative functions of the device (e.g. file upload, firmware update, reboot...) via a crafted authentication bypass.

Vulnerability class: Broken Authentication

EPSS: 0.005 (38.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Fanvil X210 — versions 2.0
Fanvil X210_firmware — versions 2.12.20
N/a — versions n/a

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

cve@mitre.org (Product)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-64055?: CVE-2025-64055 is a critical-severity vulnerability in Fanvil X210, classified under Improper Authentication. CVSS score: 9.8/10. Published 2025-12-03.
How severe is CVE-2025-64055?: Critical severity. CVSS v3 base score is 9.8 out of 10.