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CVE-2023-46381· NVD / CVE Program· CNA mitre

LOYTEC LINX-151, LINX-212, LVIS-3ME12-A1, LIOB-586, LIOB-580 V2, LIOB-588, L-INX Configurator devices (all versions) lack authentication for

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.

HighCVSS 8.2 · v3.1—No exploit No fix recorded
Published
Nov 4, 2023
Updated
Jun 17, 2026
EPSS
7.4% · 94th percentile
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JSON

Action score

34

Monitor

Low priority for now.

CVSS
32 / 40 · 8.2 / 10
CISA KEV
0 / 30 · Not listed
EPSS
2 / 30 · 7.4%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

VendorProduct
loyteclinx-212 firmware
loyteclinx-212
loyteclvis-3me12-a1 firmware
loyteclvis-3me12-a1
loytecliob-586 firmware
loytecliob-586

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • loytec linx-212 firmware6.2.4
  • loytec liob-586 firmware6.2.3
  • loytec lvis-3me12-a1 firmware6.2.2

Same product

loytec: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-46389LOYTEC electronics GmbH LINX-212 and LINX-151 devices (all versions) are vulnerable to Incorrect Access Control via registry.xml file.
    31Monitor
  • CVE-2023-46387LOYTEC electronics GmbH LINX-212 and LINX-151 devices (all versions) are vulnerable to Incorrect Access Control via dpal_config.zml file.
    31Monitor
  • CVE-2023-46382LOYTEC LINX-151, LINX-212, LVIS-3ME12-A1, LIOB-586, LIOB-580 V2, LIOB-588, L-INX Configurator devices (all versions) use cleartext HTTP for
    31Monitor
  • CVE-2023-46380LOYTEC LINX-151, LINX-212, LVIS-3ME12-A1, LIOB-586, LIOB-580 V2, LIOB-588, L-INX Configurator devices (all versions) send password-change re
    31Monitor
  • CVE-2023-46388LOYTEC electronics GmbH LINX-212 and LINX-151 devices (all versions) are vulnerable to Insecure Permissions via dpal_config.zml file.
    30Monitor
  • CVE-2023-46386LOYTEC electronics GmbH LINX-212 and LINX-151 devices (all versions) are vulnerable to Insecure Permissions via registry.xml file.
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
high · data or configuration can be modified
Availability
low · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
High
Availability impact
Low

Weakness class (CWE)

CWE-306 · Missing Authentication for Critical Function

CVSS vector

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

nvd-primary

Root cause

A function added for development or support ships to production without authentication. It often relies on the assumption that it is “only reachable from the internal network.”

The bug in code

The whole CWE-306 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
// Added for the support teamapp.post("/maintenance/reset", resetDevice);

Fixed

ts
if (config.maintenanceEnabled) {  app.post(    "/maintenance/reset",    requireSession, requireRole("admin"), resetDevice  );}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records