CVE-2025-44005

CRITICAL

smallstep certificates < 0.29.0 and Step-CA 0.28.3-0.28.4 - Improper Authentication via ACME/SCEP Provisioner

Title source: llm
STIX 2.1

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.

References (3)

Core 3

Scores

CVSS v3 10.0
EPSS 0.0028
EPSS Percentile 19.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-287
Status published
Products (3)
smallstep/certificates 0 - 0.29.0Go
smallstep/Step-CA 0.28.4
smallstep/Step-CA v0.28.3
Published Dec 17, 2025
Tracked Since Feb 18, 2026