What is CVE-2025-64056?

CVE-2025-64056 is a medium-severity vulnerability in Fanvil X210, classified under Missing Authentication for Critical Function. CVSS score: 4.3/10. Published 2025-12-05.

How severe is CVE-2025-64056?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Fanvil X210

CVE-2025-64056

File upload vulnerability in Fanvil x210 V2 2.12.20 allows unauthenticated attackers on the local network to store arbitrary files on the filesystem.

Vulnerability class: Broken Authentication

Published 2025-12-05 · last modified 2026-07-05.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (12.3th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Fanvil X210 — versions 2.0
Fanvil X210 Firmware — versions 2.12.20

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

fanvil.com (Product)
github.com/SpikeReply/advisories/blob/main/cve/fanvil/cve-2025-64056.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-64056?: CVE-2025-64056 is a medium-severity vulnerability in Fanvil X210, classified under Missing Authentication for Critical Function. CVSS score: 4.3/10. Published 2025-12-05.
How severe is CVE-2025-64056?: Medium severity. CVSS v3 base score is 4.3 out of 10.