How severe is CVE-2023-45851?

CVE-2023-45851 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-45851 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-45851?

CVE-2023-45851 primarily affects Boschrexroth Ctrlx Hmi Web Panel Wr2107 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-45851?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-45851 published?

CVE-2023-45851 was published on 2023-10-25 and last updated on 2026-06-17.

CVE-2023-45851

CVE-2023-45851 is a high-severity vulnerability in Boschrexroth Ctrlx Hmi Web Panel Wr2107 Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Boschrexroth Ctrlx Hmi Web Panel Wr2107 Firmware
Published: 2023-10-25
Last modified: 2026-06-17

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

Frequently asked questions

What is CVE-2023-45851?: 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
How severe is CVE-2023-45851?: CVE-2023-45851 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-45851 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-45851?: CVE-2023-45851 primarily affects Boschrexroth Ctrlx Hmi Web Panel Wr2107 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-45851?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-45851 published?: CVE-2023-45851 was published on 2023-10-25 and last updated on 2026-06-17.

References

https://psirt.bosch.com/security-advisories/BOSCH-SA-175607.html

Affected products (3)

cpe:2.3:o:boschrexroth:ctrlx_hmi_web_panel_wr2107_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:boschrexroth:ctrlx_hmi_web_panel_wr2110_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:boschrexroth:ctrlx_hmi_web_panel_wr2115_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Boschrexroth Ctrlx Hmi Web Panel Wr2107 Firmware

CVE-2023-46102 — High (CVSS 8.8): The Android Client application, when enrolled to the AppHub server, connects to an MQTT broker to exchange messages…
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CVE-2023-41255 — High (CVSS 8.8): The vulnerability allows an unprivileged user with access to the subnet of the TPC-110W device to gain a root shell on…
CVE-2023-45321 — High (CVSS 8.3): The Android Client application, when enrolled with the define method 1 (the user manually inserts the server ip…
CVE-2023-43488 — High (CVSS 7.9): The vulnerability allows a low privileged (untrusted) application to modify a critical system property that should be…
CVE-2023-41372 — High (CVSS 7.8): The vulnerability allows an unprivileged (untrusted) third- party application to arbitrary modify the server settings…

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