CVE-2023-36623Public exploit

Root privilege escalation via deterministic password derivation

Published Jul 5, 2023 · Updated Nov 21, 2024

Hard-coded key use in Loxone Miniserver Go Gen.2 before 14.2 allows local users to derive the root password from its MAC address. The miniserverinit setpwd command encrypts the MAC address with AES-256-CBC using a key and initialization vector embedded in the miniserverinit binary, then encodes and slices the result into the password. Low-privileged local access and the device MAC address are sufficient to obtain root privileges and fully control the appliance.

CVSS severity7.8
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded key use in Loxone Miniserver Go Gen.2 before 14.2 allows local users to derive the root password from its MAC address. The miniserverinit setpwd command encrypts the MAC address with AES-256-CBC using a key and initialization vector embedded in the miniserverinit binary, then encodes and slices the result into the password. Low-privileged local access and the device MAC address are sufficient to obtain root privileges and fully control the appliance.

The record

CVE
CVE-2023-36623
Published
Jul 5, 2023
Updated
Nov 21, 2024
Vendor
Loxone
Product
Miniserver Go (Gen 2)
Classifications
CWE-321, CWE-798, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 21, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <14.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Loxone · Miniserver Go (Gen 2)version=0 <14.2

Published CVSS scores

7.8NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-321Use of Hard-coded Cryptographic Key
CWE-798Use of Hard-coded Credentials
T1068Exploitation for Privilege Escalation

Public exploit references

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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