CVE-2026-12504

UNKNOWN 0.0

Loytec LINX firmware: Improper Authentication in PAM configuration

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

Improper Authentication (CWE-287) in the PAM configuration in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows a local attacker to authenticate as a uid=0 account without a password and obtain a root shell via an `/etc/passwd` entry with an empty password field.

CWE	CWE-287 CWE-521
Vendor	loytec
Product	lip-me20xc
Published	Jul 24, 2026
Last Updated	Jul 24, 2026

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Affected Versions

Loytec / LIP-ME20xC

0 ≤ 8.4.16

Loytec / L-INX

0 ≤ 8.4.16

Loytec / L-GATE

0 ≤ 8.4.16

Loytec / L-ROC

0 ≤ 8.4.16

Loytec / L-IOB

0 ≤ 8.4.16

Loytec / L-DALI

0 ≤ 8.4.16

Loytec / L-VIS

0 ≤ 8.4.16

Loytec / L-PAD

0 ≤ 8.4.16

References

NVD ↗ CVE.org ↗ EPSS Data ↗

loytec.com: https://www.loytec.com/support/product-security/advisories/8521-dibt-cve-20260526-0003-pam-passwordless-uid-0-authentication-high

Credits

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