← Vulnerability feed

Vulnerability record · CVE-2023-46381 · published 4 November 2023

CVE-2023-46381: Loytec linx-212 firmware missing authentication for critical function vulnerability

Loytec · Linx 212 Firmware

LOYTEC LINX-151, LINX-212, LVIS-3ME12-A1, LIOB-586, LIOB-580 V2, LIOB-588, L-INX Configurator devices (all versions) lack authentication for the preinstalled version of LWEB-802 via an lweb802_pre/ URI. An unauthenticated attacker can edit any project (or create a new project) and control its GUI.

8.2 CVSS 3.1 High EPSS 7.4% · top 5.8% CWE-306 · Missing authentication for critical function
8.2CVSS 3.1 base score
7.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

LOYTEC LINX-151, LINX-212, LVIS-3ME12-A1, LIOB-586, LIOB-580 V2, LIOB-588, L-INX Configurator devices (all versions) lack authentication for the preinstalled version of LWEB-802 via an lweb802_pre/ URI. An unauthenticated attacker can edit any project (or create a new project) and control its GUI.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/175646/LOYTEC-Electronics-Insecure-Transit-Insecure-Permissions-Unauthenticated-Acc Third Party Advisory
https://seclists.org/fulldisclosure/2023/Nov/0 Mailing ListThird Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-24-247-01
https://www.txone.com/blog/ten-unpatched-vulnerabilities-in-building-automation-products-identified-by-txone-networks/
http://packetstormsecurity.com/files/175646/LOYTEC-Electronics-Insecure-Transit-Insecure-Permissions-Unauthenticated-Acc Third Party Advisory
http://seclists.org/fulldisclosure/2023/Nov/0
https://seclists.org/fulldisclosure/2023/Nov/0 Mailing ListThird Party Advisory
https://www.txone.com/blog/ten-unpatched-vulnerabilities-in-building-automation-products-identified-by-txone-networks/

Track CVE-2023-46381 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2023-46386Loytec linx-212 firmware cleartext storage of sensitive data vulnerabilityLOYTEC electronics GmbH LINX-212 and LINX-151 devices (all versions) are vulnerable to Insecure Permissions via registry.xml file. This vulnerability…EPSS 1.6%7.5CVE-2023-46387Loytec linx-212 firmware vulnerabilityLOYTEC electronics GmbH LINX-212 and LINX-151 devices (all versions) are vulnerable to Incorrect Access Control via dpal_config.zml file. This vulner…EPSS 2.0%7.5CVE-2023-46388Loytec linx-212 firmware cleartext storage of sensitive data vulnerabilityLOYTEC electronics GmbH LINX-212 and LINX-151 devices (all versions) are vulnerable to Insecure Permissions via dpal_config.zml file. This vulnerabil…EPSS 1.5%7.5CVE-2023-46389Loytec linx-212 firmware vulnerabilityLOYTEC electronics GmbH LINX-212 and LINX-151 devices (all versions) are vulnerable to Incorrect Access Control via registry.xml file. This vulnerabi…EPSS 2.0%7.5CVE-2023-46382Loytec linx-212 firmware cleartext transmission vulnerabilityLOYTEC LINX-151, LINX-212, LVIS-3ME12-A1, LIOB-586, LIOB-580 V2, LIOB-588, L-INX Configurator devices (all versions) use cleartext HTTP for login.EPSS 2.5%7.5CVE-2023-46380Loytec linx-212 firmware cleartext transmission vulnerabilityLOYTEC LINX-151, LINX-212, LVIS-3ME12-A1, LIOB-586, LIOB-580 V2, LIOB-588, L-INX Configurator devices (all versions) send password-change requests vi…EPSS 2.5%8.8CVE-2026-67277MikroTik RouterOS btest missing authentication leaks kernel memory and crashes kernelRouterOS accepts a "related" btest connection before the primary session is authenticated, letting an unauthenticated client start an IPv4 UDP test. …KEVEPSS 1.6%analysed8.8CVE-2026-59822LiteLLM MCP endpoint auth bypass via OAuth2 passthrough fallbackLiteLLM's MCP Streamable HTTP endpoint, prior to 1.84.0, let an unauthenticated attacker send a fabricated Authorization header that triggered an OAu…KEVEPSS 0.84%analysed

Source: NIST National Vulnerability Database (record CVE-2023-46381), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.