CVE-2019-25470 HIGH

CVE-2019-25470: eWON Firmware 12.2-13.0 Authentication Bypass via wsdReadForm

Vendor Ewon
Product eWON
Weakness CWE-798 · Hardcoded credentials
Published March 11, 2026
Last update April 7, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

eWON Firmware versions 12.2 to 13.0 contain an authentication bypass vulnerability that allows attackers with minimal privileges to retrieve sensitive user data by exploiting the wsdReadForm endpoint. Attackers can send POST requests to /wrcgi.bin/wsdReadForm with base64-encoded partial credentials and a crafted wsdList parameter to extract encrypted passwords for all users, which can be decrypted using a hardcoded XOR key.

Key dates

02Disclosure timeline

March 11, 2026 CVE published
April 7, 2026 Record updated