EUVD-2025-201423
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
4Description
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.
Analysis
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.
Technical Context
A buffer overflow occurs when data written to a buffer exceeds its allocated size, potentially overwriting adjacent memory and corrupting program state. This vulnerability is classified as Classic Buffer Overflow (CWE-120).
Affected Products
Affected products: Fanvil X210 Firmware 2.12.20
Remediation
Use memory-safe languages or bounds-checked functions. Enable ASLR, DEP/NX, and stack canaries. Apply vendor patches promptly.
Priority Score
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External POC / Exploit Code
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