CVE-2025-14771
CWE-552Published: June 3, 2026· Updated: Jun 4, 2026
Official Description
Files or directories accessible to external parties vulnerability in ABB T-MAC Plus.
This issue affects T-MAC Plus: 4.0-24.
Risk Analysis
This critical vulnerability in ABB T-MAC Plus version 4.0-24 allows external parties to access sensitive files or directories. With a CVSS score of 9.9, this flaw presents an extremely high risk, potentially leading to complete data compromise and system integrity loss. There is no EPSS score to indicate exploitation likelihood.
No public exploit is currently known for this vulnerability. The issue is remotely exploitable with low privileges and has low attack complexity.
Upgrade ABB T-MAC Plus to a version beyond 4.0-24. Restrict external access to sensitive files and directories, and ensure proper access controls are in place.
Technical Analysis
CVE-2025-14771 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.9.
The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
News & Research Mentioning CVE-2025-14771
View CSAF Summary ABB became aware of vulnerability in the products versions listed as affected in the advisory. An update is available that resolves the reported vulnerabilities. An attacker who successfully exploited any of these vulnerabilities could potentially compromise the system in different ways. The following versions of ABB T-MAC Plus are affected: T-MAC Plus 4.0-24 (CVE-2025-14771, CVE-2025-14772, CVE-2025-14773, CVE-2025-14774) CVSS Vendor Equipment Vulnerabilities v3 9.9 ABB ABB T-MAC Plus Files or Directories Accessible to External Parties, Authorization Bypass Through User-Controlled Key, Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), Incorrect Authorization Background Critical Infrastructure Sec [xlite_meta score:73 src:CISA Alerts xlite_fp:873d065a905ce60a89eb46705d5863ae5e96b713299d4bddefb9a044477659a8]
All References (1)
Quick Facts
Related CVEs (CWE-552)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-14771 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts