CVE-2020-37135 CRITICAL

CVE-2020-37135: AMSS++ 4.7 - Backdoor Admin Account

Vendor Amssplus
Product AMSS++
Weakness CWE-798 · Hardcoded credentials
Published February 6, 2026
Last update March 5, 2026

CVSS base score

9.3/10
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:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

AMSS++ 4.7 contains an authentication bypass vulnerability that allows attackers to access administrative accounts using hardcoded credentials. Attackers can log in with the default admin username and password '1234' to gain unauthorized administrative access to the system.

Key dates

02Disclosure timeline

February 6, 2026 CVE published
March 5, 2026 Record updated