CVE-2023-46382Network attack vector

Credential theft via cleartext HTTP login

Published Nov 4, 2023 · Updated Nov 4, 2025

Cleartext credential transmission in LOYTEC building-automation devices of all versions allows man-in-the-middle attackers to steal logins over HTTP. The web login interface sends usernames and passwords without transport encryption rather than requiring HTTPS. An attacker must be able to observe management-network traffic; captured credentials permit authenticated access to device data, commissioning, and configuration functions.

CVSS severity7.5
High
EPSS probability2.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext credential transmission in LOYTEC building-automation devices of all versions allows man-in-the-middle attackers to steal logins over HTTP. The web login interface sends usernames and passwords without transport encryption rather than requiring HTTPS. An attacker must be able to observe management-network traffic; captured credentials permit authenticated access to device data, commissioning, and configuration functions.

The record

CVE
CVE-2023-46382
Published
Nov 4, 2023
Updated
Nov 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-319, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-319Cleartext Transmission of Sensitive Information
T1040Network Sniffing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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