CVE-2025-44005 | BDVDB-2026-306554 Detail

smallstepStep-CA

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#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact none. Attack vector: network.

Weaknesses#

CWE-287 Improper Authentication

References#

Exploit#

No public exploit known

History#

Version 12025-12-17Record published in the CVE List.

Published

Published: 2025-12-17
Last modified: 2025-12-17

Vendor information

Vendor: smallstep
Product: Step-CA

All smallstep vulnerabilities

Score

10.0 Critical

EPSS

9.0%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 95.3.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Authentication Issues

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
0.28.4
Fixed
Not stated
Vulnerable
v0.28.3
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

10.0 Critical

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Changed
Confidentiality	High
Integrity	High
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).