Improper Authentication Vulnerability in Loytec Products
CVE-2026-12504

8.4HIGH

Key Information:

Vendor

Loytec

Status
Lip-me20xc
L-inx
L-gate
L-roc
Vendor
CVE Published:
24 July 2026

What is CVE-2026-12504?

A vulnerability exists in the PAM configuration of multiple Loytec devices, allowing a local attacker to bypass authentication mechanisms. By exploiting an empty password field in the /etc/passwd file, unauthorized users can gain access as a uid=0 account, providing full root shell access. This could lead to severe security implications, as it compromises the integrity of the affected systems and exposes sensitive information.

Affected Version(s)

L-DALI 0 <= 8.4.16

L-GATE 0 <= 8.4.16

L-INX 0 <= 8.4.16

References

https://www.loytec.com/support/product-security/advisorie...
vendor-advisory

CVSS V4

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Daniel Hulliger, armasuisse CYD Campus
Damian Pfammatter, armasuisse CYD Campus
.