# CVE-2025-14772: ABB T-MAC Plus authorization bypass via user-controlled key

Source: https://junglewise.ai/threats/cve-2025-14772-abb-t-mac-plus-authorization-bypass-via-user-controlled-key  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-03. Updated: 2026-06-03  
License: CC BY 4.0 with a link back

CVE-2025-14772 · Severity: high · CVSS 8.8 · Published 2026-06-03

ABB T-MAC Plus, a device used for building automation and energy management, contains a security flaw that allows unauthorized users to bypass access controls. By manipulating specific data keys, an attacker could gain unauthorized access to the system's management functions. This could lead to the disruption of building operations, unauthorized changes to energy settings, or the theft of sensitive configuration data.

Technologies: [ABB T-MAC Plus](https://junglewise.ai/threats/technologies/t-mac-plus). Vendors: [ABB](https://junglewise.ai/threats/vendors/abb).

## Quick answers

**Is CVE-2025-14772 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-14772 being exploited in the wild.

**How severe is CVE-2025-14772?** High severity, with a CVSS score of 8.8, published 3 June 2026.

**Which products and versions are affected?** ABB T-MAC Plus 4.0-24.

**Is there a fix for CVE-2025-14772?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-14772 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2025-14772?** Check whether you run ABB T-MAC Plus at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An authorization bypass vulnerability exists in ABB T-MAC Plus version 4.0-24 due to improper handling of user-controlled keys. An unauthenticated attacker with network access can exploit this by providing a crafted key or identifier that the application uses to make authorization decisions without sufficient validation. Successful exploitation allows the attacker to bypass security checks and perform actions with elevated privileges. This can result in a complete loss of confidentiality, integrity, and availability for the affected device. Users are advised to consult ABB's official security advisory for mitigation steps and firmware updates.

## Affected products

- ABB T-MAC Plus 4.0-24

## Timeline

- 2026-06-03: advisory: Vulnerability published by NVD

## References

- [https://search.abb.com/library/Download.aspx?DocumentID=9AKK108472A7840&LanguageCode=en&DocumentPartId=&Action=Launch](https://search.abb.com/library/Download.aspx?DocumentID=9AKK108472A7840&LanguageCode=en&DocumentPartId=&Action=Launch)

## Related threats

- [ABB T-MAC Plus incorrect authorization](https://junglewise.ai/threats/cve-2025-14774-abb-t-mac-plus-incorrect-authorization)
- [ABB T-MAC Plus cross-site scripting](https://junglewise.ai/threats/cve-2025-14773-abb-t-mac-plus-cross-site-scripting)
- [ABB T-MAC Plus unauthorized file and directory access](https://junglewise.ai/threats/cve-2025-14771-abb-t-mac-plus-unauthorized-file-and-directory-access)