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High · 8.4 CVE-2026-12504 EUVD-2026-48592GHSA-6gf2-c64f-3g3h

Loytec LINX firmware: Improper Authentication in PAM configuration

Published Jul 24, 2026 · Updated Jul 24, 2026 · Assigned by NCSC.ch

Description

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.

Affected products

VendorProductAffectedFixed
Loytec LIP-ME20xC ≤ 8.4.16 —
Loytec L-INX ≤ 8.4.16 —
Loytec L-GATE ≤ 8.4.16 —
Loytec L-ROC ≤ 8.4.16 —
Loytec L-IOB ≤ 8.4.16 —
Loytec L-DALI ≤ 8.4.16 —
Loytec L-VIS ≤ 8.4.16 —
Loytec L-PAD ≤ 8.4.16 —

References