Predictable Credential Generation Vulnerability in Dixell XWEB EVO
CVE-2026-124006

9.2CRITICAL

Key Information:

Vendor

Copeland

Status
Xweb Evo
Vendor
CVE Published:
12 November 2026

What is CVE-2026-124006?

The XWEB EVO system developed by Dixell contains a serious vulnerability related to predictable credential generation. This issue enables attackers to derive the Linux root password by utilizing a fixed prefix in conjunction with a daily password value. Notably, in versions prior to 5.7.0, the root password was identical across all units, while from version 5.7.0 onward, it can still be calculated from a MAC-based daily password. Consequently, this flaw poses a significant risk as it allows unauthorized access to the operating system's root permissions.

Affected Version(s)

XWEB EVO 0 <= 5.8.8

References

https://webapps.copeland.com/Dixell/Pages/SystemSoftwareU...
patchproduct
https://webapps.copeland.com/dixell/Content/Pages/Adverti...
vendor-advisory
https://www.vulncheck.com/advisories/dixell-copeland-xweb...
third-party-advisory

CVSS V4

Score:
9.2
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Valentin Lobstein (Chocapikk)
.