What is CVE-2025-64053?

CVE-2025-64053 is a high-severity vulnerability in Fanvil X210, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2025-12-05.

How severe is CVE-2025-64053?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Fanvil X210

CVE-2025-64053

A Buffer overflow vulnerability on Fanvil x210 2.12.20 devices allows attackers to cause a denial of service or potentially execute arbitrary commands via crafted POST request to the /cgi-bin/webconfig?page=upload&action=submit endpoint.

Vulnerability class: Buffer Overflow

EPSS: 0.026 (83.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

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

Frequently asked questions

What is CVE-2025-64053?: CVE-2025-64053 is a high-severity vulnerability in Fanvil X210, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2025-12-05.
How severe is CVE-2025-64053?: High severity. CVSS v3 base score is 7.5 out of 10.