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Fencer Vulns
high 8.3

CVE-2023-45321 json

The Android Client application, when enrolled with the define method 1 (the user manually inserts the server ip address), use HTTP protocol…

published 2023-10-25 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-49615

cvss
8.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits
0
none known

Summary

The Android Client application, when enrolled with the define method 1 (the user manually inserts the server ip address), use HTTP protocol to retrieve sensitive information (ip address and credentials to connect to a remote MQTT broker entity) instead of HTTPS and this feature is not configurable by the user. Due to the lack of encryption of HTTP,this issue allows an attacker placed in the same subnet network of the HMI device to intercept username and password necessary to authenticate to the MQTT server responsible to implement the remote management protocol.

Patch / fix

  • boschrexroth ctrlx_hmi_web_panel_wr2107 RC7(Build date 20231107)

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
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)
  • boschrexroth ctrlx_hmi_web_panel_wr2107

Classification

Weakness
  • CWE-319 Cleartext Transmission of Sensitive Information

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.