CVE-2020-37135CWE-798

AMSS++ 4.7 - Backdoor Admin Account

Critical · published February 6, 2026

CVSS v4.0
9.3
EPSS
0%
Percentile
40.6
In the wild
Unconfirmed
What it is

🚨 A simple username and password combo is all it takes to unlock administrative powers in AMSS++ 4.7! 🔥 Think of it like having a key to a highly secure office, but the lock is just a cheap padlock that anyone can pick if they know the trick — it's way too easy! An attacker could log in with the default credentials and gain full control over the system, accessing sensitive data, managing user accounts, and even making destructive changes. This could lead to a catastrophic breach where data integrity is compromised, potentially impacting all users relying on the system.

Put simply

Think of it like having a key to a highly secure office, but the lock is just a cheap padlock that anyone can pick if they know the trick — it's way too easy! CVE-2020-37135 is an authentication bypass vulnerability in AMSS++ 4.7 that allows unauthorized access to administrative accounts using hardcoded credentials, specifically the default username and password '1234'. This flaw means that any attacker could gain full privileges without any legitimate authentication.

What to do

An attacker could log in with the default credentials and gain full control over the system, accessing sensitive data, managing user accounts, and even making destructive changes. This could lead to a catastrophic breach where data integrity is compromised, potentially impacting all users relying on the system. To protect your systems, immediately change the default admin username and password. Ensure that all instances of AMSS++ are updated to the latest version, and audit your user accounts to remove any unnecessary privileges. Don't let default credentials linger! You've got this! Follow these steps and your system will be safer in no time. 🛡️

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
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
EPSS
0.00482 · 40.6th percentile
Weakness
CWE-798 · Use of Hard-coded Credentials
Published
2026-02-06T23:14Z
EPSS history
Timeline
  • 06 FEB 23:14Z
    AMSS++ 4.7 - Backdoor Admin Account
    cvelistv5