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Vulnerability record · CVE-2020-37135 · published 7 February 2026

CVE-2020-37135: Hard-coded credentials vulnerability

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.

9.3 CVSS 4.0 Critical EPSS 0.45% · top 63.0% CWE-798 · Hard-coded credentials Deferred
9.3CVSS 4.0 base score
0.45%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://www.exploit-db.com/exploits/48114
https://www.vulncheck.com/advisories/amss-backdoor-admin-account

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Source: NIST National Vulnerability Database (record CVE-2020-37135), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.