CVE-2021-41545 is a high-severity vulnerability affecting Siemens Desigo DXR2, PXC3, PXC4, and PXC5 controllers (all versions prior to specified updates). An unauthenticated attacker can send a specially crafted BACnet protocol packet, causing the controller's BACnet communication to fail and potentially triggering a factory reset. This network-exploitable vulnerability has a CVSS score of 7.5, indicating a high impact on availability. While no active exploitation, public exploit code, or significant community discussion has been observed, organizations should prioritize patching to mitigate the risk of denial of service.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 01.21.142.5-22CPE matchmatch criteria | cpe:2.3:o:siemens:desigo_dxr2_firmware:*:*:*:*:*:*:*:* | ||
< 01.21.142.4-18CPE matchmatch criteria | cpe:2.3:o:siemens:desigo_pxc3_firmware:*:*:*:*:*:*:*:* | ||
< 02.20.142.10-10884CPE matchmatch criteria | cpe:2.3:o:siemens:desigo_pxc4_firmware:*:*:*:*:*:*:*:* | ||
< 02.20.142.10-10884CPE matchmatch criteria | cpe:2.3:o:siemens:desigo_pxc5_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.