CVE-2025-27254
Raw vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:HSummary
CVE-2025-27254 is a high-severity Improper Ownership Management (CWE-282) vulnerability in Gevernova (inferred from references). Its CVSS base score is 8.0 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Path Interception (T1034); ranked at the 8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to AC-16 (Security and Privacy Attributes) and AC-3 (Access Enforcement) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2025-27254, published on 2025-03-10, is a CWE-282 Improper Ownership Management vulnerability in GE Vernova EnerVista UR Setup software. The issue enables authentication bypass because the software's startup authentication can be disabled by altering a Windows registry setting that any user can modify. It carries a CVSS v3.1 base score of 8.0 (AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H).
A local attacker requires no privileges and can exploit the vulnerability with low attack complexity and no user interaction. By modifying the accessible Windows registry setting, the attacker disables startup authentication, leading to low confidentiality impact alongside high integrity and availability impacts on the affected software.
Advisories from GE Vernova and Nozomi Networks provide details on mitigation and patches, accessible at https://www.gevernova.com/grid-solutions/app/DownloadFile.aspx?prod=urfamily&type=21&file=76 and https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-27254.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-7758
Vulnerability Data
CWE-282 "Improper Ownership Management" in GE Vernova EnerVista UR Setup allows Authentication Bypass. The software's startup authentication can be disabled by altering a Windows registry setting that any user can modify.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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- 1 hardening rule · 1 OS baseline
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Mitigating Controls (NIST 800-53 r5) AI
Security attributes explicitly include ownership, so proper attribute association and management stops incorrect ownership assignment.
Access enforcement requires correct ownership verification before granting access to objects or resources.
Access decisions must be based on accurate ownership data for each request.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Managing and enforcing access permissions and authorizations directly addresses correct ownership assignment and verification for resources.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Access control policies can enforce correct ownership assignment and verification for objects.
Identity management processes help ensure objects are assigned to the correct, verified owners.
Managing access rights includes verifying and maintaining proper ownership of resources.
Privileged access rights management requires accurate ownership to prevent unauthorized privilege escalation.
Information access restriction mechanisms rely on correct ownership to enforce access decisions.
Access to source code control depends on proper ownership assignment to protect intellectual property.
Hardening callouts derived
Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).
Windows Server 2016 (1 rule)
- V-224973 The Active Directory Domain Controllers Organizational Unit (OU) object must have the proper access control permissions. prevents CWE-282