CVE-2026-12504CWE-287CWE-521

Loytec LINX firmware: Improper Authentication in PAM configuration

High · published July 24, 2026

CVSS v4.0
8.4
EPSS
0%
Percentile
7.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.4 · HIGH
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00187 · 7.9th percentile
Weaknesses
CWE-287 · Improper Authentication; CWE-521 · Weak Password Requirements
Published
2026-07-24T13:58Z
EPSS history
Timeline
  • 24 JUL 13:58Z
    Loytec LINX firmware: Improper Authentication in PAM configuration
    cvelistv5