CVE-2023-45851

Name: CVE-2023-45851
Creator: NVD / NIST
Published: 2023-10-25T18:17:35.427+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.45%

Last modified Jun 17, 2026

CVE-2023-45851 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The Android Client application, when enrolled to the AppHub server,connects to an MQTT broker without enforcing any server authentication. This issue allows an attacker to force the Android Client application to connect to a malicious MQTT broker, enabling it to send fake messages to the HMI device. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

Description

The Android Client application, when enrolled to the AppHub server,connects to an MQTT broker without enforcing any server authentication. This issue allows an attacker to force the Android Client application to connect to a malicious MQTT broker, enabling it to send fake messages to the HMI device

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.45%

35.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Boschrexroth	Ctrlx Hmi Web Panel Wr2107 Firmware	All versions
Boschrexroth	Ctrlx Hmi Web Panel Wr2110 Firmware	All versions
Boschrexroth	Ctrlx Hmi Web Panel Wr2115 Firmware	All versions

References

https://psirt.bosch.com/security-advisories/BOSCH-SA-175607.htmlMitigation, Vendor Advisory
https://psirt.bosch.com/security-advisories/BOSCH-SA-175607.htmlMitigation, Vendor Advisory

Timeline

Published: Oct 25, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-45851?

How severe is CVE-2023-45851?

CVE-2023-45851 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.

How do I fix CVE-2023-45851?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-45851?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST