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Fencer Vulns
high 8.8

CVE-2023-46102 json

The Android Client application, when enrolled to the AppHub server, connects to an MQTT broker to exchange messages and receive commands to…

published 2023-10-25 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-50363

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

The Android Client application, when enrolled to the AppHub server, connects to an MQTT broker to exchange messages and receive commands to execute on the HMI device. The protocol builds on top of MQTT to implement the remote management of the device is encrypted with a hard-coded DES symmetric key, that can be retrieved reversing both the Android Client application and the server-side web application.

This issue allows an attacker able to control a malicious MQTT broker on the same subnet network of the device, to craft malicious messages and send them to the HMI device, executing arbitrary commands on the device itself.

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.50% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Bosch Rexroth AG ctrlX HMI Web Panel - WR21 (WR2107)
  • Bosch Rexroth AG ctrlX HMI Web Panel - WR21 (WR2110)
  • Bosch Rexroth AG ctrlX HMI Web Panel - WR21 (WR2115)
  • boschrexrothag ctrl_hmi_web_panel-wr21_\(wr2110\)
  • boschrexrothag ctrl_hmi_web_panel-wr21_\(wr2115\)
  • boschrexrothag ctrl_hmi_web_panel-wr21_\(wr2107\)

Classification

Weakness
  • CWE-798 Use of Hard-coded Credentials

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.