SB20260721130 - Missing support for integrity check in ABB KNX Update Tool (ABB) and KNX Update Tool (BJE)
Published: July 21, 2026
Security Bulletin ID
SB20260721130
CSH Severity
Medium
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Missing support for integrity check (CVE-ID: CVE-2026-12705)
CWE-ID: CWE-353 - Missing Support for Integrity Check
CVSSv4: CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to missing protection of the integrity of the firmware image. A remote user on the local network can bypass integrity mechanism of KNX-device FW-files.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.