CVE-2025-56015
Published: 07 April 2026
Summary
CVE-2025-56015 is a high-severity Improper Access Control (CWE-284) vulnerability in Genieacs Genieacs. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 18.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 AC-14 (Permitted Actions Without Identification or Authentication) and AC-3 (Access Enforcement).
Deeper analysis
CVE-2025-56015 is an unauthenticated access vulnerability in the NBI API endpoint of GenieACS version 1.2.13. This flaw, linked to CWE-284 (Improper Access Control), was published on 2026-04-07 and carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), highlighting high severity driven by network accessibility, low complexity, no required privileges or user interaction, and significant confidentiality impact.
Remote attackers without authentication can exploit the vulnerable NBI API endpoint to achieve unauthorized access, resulting in high confidentiality impact such as disclosure of sensitive data hosted by the affected GenieACS instance.
Mitigation details and related advisories are available in the referenced repositories at https://github.com/e1st/CVE-2025-56015 and https://github.com/genieacs/genieacs/.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-209276
Vulnerability details
In GenieACS 1.2.13, an unauthenticated access vulnerability exists in the NBI API endpoint.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Direct unauthenticated access to public NBI API endpoint enables exploitation of public-facing application for initial unauthorized data access.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
AC-3 requires the system to enforce approved authorizations for logical access to resources, directly preventing unauthorized access to the vulnerable NBI API endpoint.
IA-8 mandates identification and authentication for non-organizational users or processes, blocking remote unauthenticated attackers from exploiting the API.
AC-14 explicitly defines and limits actions permitted without identification or authentication, ensuring sensitive API endpoints require proper credentials.