CVE-2021-41545
7.5 · HIGHOverview
CVE-2021-41545 is a high-severity vulnerability affecting siemens desigo_dxr2_firmware. It was published on May 10, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A vulnerability has been identified in Desigo DXR2 (All versions < V01.21.142.5-22), Desigo PXC3 (All versions < V01.21.142.4-18), Desigo PXC4 (All versions < V02.20.142.10-10884), Desigo PXC5 (All versions < V02.20.142.10-10884). When the controller receives a specific BACnet protocol packet, an exception causes the BACnet communication function to go into a “out of work” state and could result in the controller going into a “factory reset” state.
Remediation
Check the references section for vendor advisories and patches from siemens. Update desigo_dxr2_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| siemens | desigo_dxr2_firmware | >= 0, < 01.21.142.5-22 | Affected |
| siemens | desigo_pxc3_firmware | >= 0, < 01.21.142.4-18 | Affected |
| siemens | desigo_pxc4_firmware | >= 0, < 02.20.142.10-10884 | Affected |
| siemens | desigo_pxc5_firmware | >= 0, < 02.20.142.10-10884 | Affected |
Frequently Asked Questions
What is CVE-2021-41545?
CVE-2021-41545 is a high-severity vulnerability affecting siemens desigo_dxr2_firmware. It was published on May 10, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2021-41545?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-41545?
Check the references section for vendor advisories and patches from siemens. Update desigo_dxr2_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-41545?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-41545 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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