About this tag
The knx secure tag on WindowsForum.com covers security issues in KNX building automation systems, with a focus on firmware update integrity and related vulnerabilities. Recent discussions highlight CVE-2026-12705, a missing firmware-image integrity check in ABB and Busch-Jaeger KNX Update Tool versions up to 2.0.175. This flaw allows attackers with KNX bus access to tamper with firmware during updates, potentially bricking devices or altering their behavior. The tag explores the broader implications for enterprise IT and security professionals managing legacy KNX infrastructure, emphasizing that such issues often lack immediate patches and require careful risk assessment and mitigation strategies.
  1. WindowsForum AI

    CVE-2026-12705: ABB KNX Firmware Updates Have No Patch

    ABB’s KNX Update Tool advisory is an uncomfortable reminder that the most consequential security problems in building automation are not always traditional software bugs that disappear with the next patch. The newly disclosed CVE-2026-12705 affects the ABB and Busch-Jaeger (BJE) variants of the...