How severe is CVE-2023-45321?

CVE-2023-45321 has a CVSS 3.x base score of 8.3, 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 low.

Is CVE-2023-45321 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-45321?

CVE-2023-45321 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-2023-45321?

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-2023-45321 published?

CVE-2023-45321 was published on 2023-10-25 and last updated on 2026-06-17.

CVE-2023-45321

CVE-2023-45321 is a high-severity vulnerability in Boschrexroth Ctrlx Hmi Web Panel Wr2107 Firmware with a CVSS 3.x base score of 8.3. 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-319.

Key facts

Severity: High (CVSS 3.x base score 8.3)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
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 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.

Frequently asked questions

What is CVE-2023-45321?: 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.
How severe is CVE-2023-45321?: CVE-2023-45321 has a CVSS 3.x base score of 8.3, 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 low.
Is CVE-2023-45321 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-45321?: CVE-2023-45321 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-2023-45321?: 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-2023-45321 published?: CVE-2023-45321 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:*:*:*:*:*:*:*:*

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