Detections
Analytics

LOYTEC L-IP BACnet/IP Routers Improper Privilege Management (CVE-2026-12502)

high Tenable OT Security Plugin ID 505946

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A local attacker who is a member of the 'superadmin' group can reset the password of any LARM user on a LOYTEC L-IP BACnet/IP router, including the 'larmapp' service account, via the 'set-passwd' subcommand of the '/usr/bin/ltsudo' utility. This bypasses the authorization checks that should limit password resets to the account's own owner.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Upgrade to firmware version 8.4.18 or later.

See Also

http://www.nessus.org/u?bf96c7c5

Plugin Details

Severity: High

ID: 505946

File Name: tenable_ot_loytecelectronics_CVE-2026-12502.nasl

Version: 1.3

Type: Remote

Family: Tenable.ot

Published: 9/7/2026

Updated: 10/8/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.15

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.4

Threat Score: 5.7

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/o:loytec:lip-me201c_firmware, cpe:/o:loytec:lip-me202c_firmware, cpe:/o:loytec:lip-me204c_firmware

Required KB Items: Tenable.ot/LOYTECElectronics

Exploit Ease: No known exploits are available

Patch Publication Date: 6/22/2026

Vulnerability Publication Date: 6/22/2026

Reference Information

CVE: CVE-2026-12502

CWE: 269