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CVE PROGRAM SOURCE RECORD9.2 Critical

CVE-2026-12503

Loytec LINX firmware: Improper Link Resolution in /usr/bin/larm_starter

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Status
Published
Published
Updated
Assigning organization
NCSC.ch

Description

Improper Link Resolution (CWE-59) in `/usr/bin/larm_starter` in Loytec L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows an authenticated `larmapp` attacker to make `/etc/passwd` writable by the `larmapp` group (leading to root privilege escalation) via a symlink attack on `/etc/lighttpd/ssl/server.pem`.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Loytec LIP-ME20xC

Default version status: unaffected

  • 0 to ≤ 8.4.16affected

Loytec L-INX

Default version status: unaffected

  • 0 to ≤ 8.4.16affected

Loytec L-GATE

Default version status: unaffected

  • 0 to ≤ 8.4.16affected

Loytec L-ROC

Default version status: unaffected

  • 0 to ≤ 8.4.16affected

Loytec L-IOB

Default version status: unaffected

  • 0 to ≤ 8.4.16affected

Loytec L-DALI

Default version status: unaffected

  • 0 to ≤ 8.4.16affected

Loytec L-VIS

Default version status: unaffected

  • 0 to ≤ 8.4.16affected

Loytec L-PAD

Default version status: unaffected

  • 0 to ≤ 8.4.16affected

References