Security readout for executives and security teams
Plain-English summary
This issue affected the cloud commissioning process for ABB and Busch-Jaeger ControlTouch. A serial number could be misused so a device was linked to another cloud profile. In specific circumstances, that could allow remote observation and control. ABB states the issue was fixed cloud-side and no customer firmware update was needed.
Executive priority
Treat as a moderate smart-building control risk. The vendor says the cloud service was fixed, so priority is confirming whether any owned ControlTouch devices were affected or misassociated, not emergency firmware deployment.
Technical view
CVE-2021-22272 is a ControlTouch cloud service issue tied to commissioning and serial-number handling. CVSS 3.1 is 6.5, network exploitable, no privileges or user interaction required, with low confidentiality and integrity impact and no availability impact. It is categorized as CWE-200.
Likely exposure
Likely exposure is limited to ABB/Busch-Jaeger ControlTouch users using mybuildings.abb.com or my.busch-jaeger.de during the affected commissioning process. The source does not identify vulnerable firmware versions or broader product families.
Exploitation context
The source bundle does not show active exploitation, and the CVE is not listed as KEV. Exploitation requires misuse of a serial number during commissioning and succeeds only under very specific circumstances, but successful misuse could enable remote observation and control.
Researcher notes
Public detail is limited. The source describes serial-number misuse in commissioning but does not provide technical preconditions beyond “specific circumstances.” Avoid assuming exploit availability, firmware impact, or additional affected services without vendor confirmation.
Mitigation direction
- Review ABB’s advisory for affected-user determination guidance.
- Confirm the cloud-side fix applies to your tenant and region.
- No firmware update is required according to the CVE description.
- Audit ControlTouch devices for unexpected cloud profile associations.
- Contact ABB or Busch-Jaeger support if ownership appears incorrect.
Validation and detection
- Inventory ControlTouch deployments and associated cloud accounts.
- Verify each device is linked only to authorized profiles.
- Review commissioning records around the affected service period.
- Check vendor advisory criteria for affected-user status.
- Document support confirmation or remediation evidence.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-22272 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N3.92.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://search.abb.com/library/Download.aspx?DocumentID=9AKK107992A3688&LanguageCode=en&DocumentPartId=&Action=LaunchCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.