CVE-2026-3873

HIGH

Avantra <25.3.0 - Auth Bypass

Title source: llm

Description

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

References (1)

[Various Sources] https://support.avantra.com/hc/en-us/articles/5352465121695-Security-Notice-Legacy-Built-In-User-Account-rtm

Scores

CVSS v3 7.2

EPSS 0.0001

EPSS Percentile 1.4%

Attack Vector NETWORK

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

Details

CWE

CWE-798

Status published

Products (1)

syslink software AG/Avantra < 25.3.0

Published Mar 13, 2026

Tracked Since Mar 14, 2026