SB2025052720 - Denial of service in Siemens APOGEE PXC and TALON TC Series (BACnet) Devices
Published: May 27, 2025
Security Bulletin ID
SB2025052720
CSH Severity
Low
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Expected behavior violation (CVE-ID: CVE-2025-40555)
CWE-ID: CWE-440 - Expected Behavior Violation
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:L/E:U/U:Clear
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the affected devices start sending unsolicited BACnet broadcast messages after processing a specific BACnet createObject request. A remote attacker on the local network can perform a denial of service (DoS) attack.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.