Vulnerability · Published May 10, 2022 · Assigned by siemens

CVE-2021-41545

High 7.5

In plain English

A high-severity security flaw in Desigo DXR2 from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities).

Severity (CVSS NVD)7.5High
Exploit odds (30 days)0.9%top 39.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
Siemens Desigo DXR2 All versions < V01.21.142.5-22
Siemens Desigo PXC3 All versions < V01.21.142.4-18
Siemens Desigo PXC4 All versions < V02.20.142.10-10884
Siemens Desigo PXC5 All versions < V02.20.142.10-10884

Weakness: CWE-248

References