ABB Busch-Welcome 2 Wire Door Opener Actuator
Summary
Vulnerability reported (CVE-2025-7705). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
View CSAF Summary ABB is aware of vulnerabilities in the product versions listed as affected in the advisory. An attacker who successfully exploited this vulnerability could gain physical, unauthorized access to a Building where the product is installed The following versions of ABB Busch-Welcome 2 Wire Door Opener Actuator are affected: Switch Actuator 4 DU vers:all/* Switch actuator, door/light 4 DU vers:all/* CVSS Vendor Equipment Vulnerabilities v3 6.8 ABB ABB Busch-Welcome 2 Wire Door Opener Actuator Active Debug Code Background Critical Infrastructure Sectors: Commercial Facilities Countries/Areas Deployed: Worldwide Company Headquarters Location: Switzerland Vulnerabilities Expand All + CVE-2025-7705 Authentication bypass due to compatibility mode enabled by default View CVE Details Affected Products ABB Busch-Welcome 2 Wire Door Opener Actuator Vendor:ABB Product Version:Switch Actuator 4 DU -83330 - All Versions, Switch actuator, door/light 4 DU -83330-500 - All Versions Product Status:known_affected Remediations MitigationThe following actions need to be executed on premise where the respective Busch-Welcome® System is installed: • While the Busch-Welcome® System is in operation, toggle the mode switch on the product from “Door-Open” - to “Light” – Mode, wait one second and switch back to “Door-Open” - Mode. • Restart the Busch-Welcome® System with a Power reset (mains power off and on again). By executing the above steps, the system will recalibrate itself during…
Source: CISA ICS Advisories NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2025-7705 has been found.
Risk of unauthorized operations or information disclosure.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "CVE-2025-7705" on the vendor's site.
CVE-2025-7705
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (unclassified) has been reported.
Check the vendor advisory for the affected versions.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで影響コンポーネントを特定する。
-
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- ICSA cisa.gov