CVE-2026-3873 HIGH

CVE-2026-3873: Legacy built-in user account

Vendor Syslink Software Ag

Product Avantra

Weakness CWE-798 · Hardcoded credentials

Published March 13, 2026

Last update March 13, 2026

View on NVD All CVEs

CVSS base score

7.2/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality Low

Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

Use of Hard-coded Credentials vulnerability in Avantra allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects Avantra: before 25.3.0.

Key dates

02Disclosure timeline

March 13, 2026 CVE published

March 13, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-3873 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/798.html

Related vulnerabilities

CVE-2026-3873: Legacy built-in user account

01Description

02Disclosure timeline

03References

04Related CVE