CVE-2025-44005 - CVE House
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Status published Critical CVE-2025-44005

An attacker can bypass authorization checks and force a Step...

Vulnerability Description

An attacker can bypass authorization checks and force a Step CA ACME or SCEP provisioner to create certificates without completing certain protocol authorization checks.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Stephen Kubik of the Cisco Advanced Security Initiatives Group (ASIG)

References

More from smallstep

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CVE-2025-66406
Improper Authorization Check for SSH Certificate Revocation
Medium 5

Affected Vendor

Affected Software

Step-CA
Vulnerable Versions:
0.28.4, v0.28.3

Timeline

Official Publish: December 17th, 2025
Last Modified: December 17th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Weaknesses (CWE)

CWE-287

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1078 Valid Accounts
Persistence
T1556 Modify Authentication Process
Credential Access