CVE-2023-46102

Adjacent-network command execution via hard-coded MQTT key

Published Oct 25, 2023 · Updated Sep 11, 2024

Command injection in Bosch Rexroth ctrlX HMI Web Panel WR21 before RC7 allows remote attackers to execute commands via crafted MQTT messages. The onboard Android Agent protects its MQTT remote-management protocol with a hard-coded DES key recoverable from the client and server applications. Reachability requires control of a malicious MQTT broker on the panel's subnet; forged messages execute arbitrary device commands without authentication.

CVSS severity8.8
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Bosch Rexroth ctrlX HMI Web Panel WR21 before RC7 allows remote attackers to execute commands via crafted MQTT messages. The onboard Android Agent protects its MQTT remote-management protocol with a hard-coded DES key recoverable from the client and server applications. Reachability requires control of a malicious MQTT broker on the panel's subnet; forged messages execute arbitrary device commands without authentication.

The record

CVE
CVE-2023-46102
Published
Oct 25, 2023
Updated
Sep 11, 2024
Vendor
Bosch Rexroth AG
Product
ctrlX HMI Web Panel WR2107
Classifications
CWE-798, T1692.001
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 11, 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?

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  1. Affected versionversion=0 <*
  2. Affected versionversion=all

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Bosch Rexroth AG · ctrlX HMI Web Panel WR2107version=0 <*; version=all
Bosch Rexroth AG · ctrlX HMI Web Panel WR2115version=0 <*; version=all
Bosch Rexroth AG · ctrlX HMI Web Panel WR2110version=0 <*; version=all

Published CVSS scores

8.8Bosch PSIRTCVSS:3.1/AV:A/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1692.001Unauthorized Message: Command Message

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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