Uncaught Exception in Siemens products - CVE-2021-41545
Published: May 11, 2022
Vulnerability identifier: #VU63071
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-41545
CWE-ID: CWE-248
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to uncaught exception within the BACnet communication function. A remote attacker can cause a denial of service condition on the target system.
Affected software
Desigo PXC3
Desigo DXR2
Desigo PXC4
Desigo PXC5
Desigo DXR2
Desigo PXC4
Desigo PXC5
How to mitigate CVE-2021-41545
Install updates from vendor's website.
Desigo PXC3 - update to 01.21.142.4-1
Desigo DXR2 - update to 01.21.142.5-22
Desigo PXC4 - update to 02.20.142.10-10884
Desigo PXC5 - update to 02.20.142.10-10884
Desigo DXR2 - update to 01.21.142.5-22
Desigo PXC4 - update to 02.20.142.10-10884
Desigo PXC5 - update to 02.20.142.10-10884