Cyber Resilience

CVE-2023-46381

HighPublic PoC

Published: 04 November 2023

Published
04 November 2023
Modified
04 November 2025
KEV Added
Patch
CVSS Score v3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
EPSS Score 0.0014 34.2th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-46381 is a high-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Loytec Linx-212 Firmware. Its CVSS base score is 8.2 (High).

Operationally, ranked at the 34.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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…

more

GUI.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

loytec
linx-212 firmware
6.2.4
loytec
lvis-3me12-a1 firmware
6.2.2
loytec
liob-586 firmware
6.2.3

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-306

Requires established identification and authentication to unlock, mitigating missing authentication for continued system access.

addresses: CWE-306

Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.

addresses: CWE-306

Authorizing mobile device connections to organizational systems ensures authentication is performed for this critical access function.

addresses: CWE-306

Guarantees critical functions are protected by mandatory invocation of the access control mechanism.

addresses: CWE-306

Auditing sessions makes it possible to detect access to critical functions without required authentication.

addresses: CWE-306

The assessment process confirms authentication is present and effective for critical functions, preventing exploitation from missing authentication.

addresses: CWE-306

Certification assesses that critical functions have required authentication controls in place.

addresses: CWE-306

Disabling non-essential functions and services eliminates the need to secure them, reducing exposure from missing authentication on unnecessary components.

References