Critical 10.0Published Dec 17, 2025

CVE-2025-44005An attacker can bypass authorization checks and force a Step CA ACME or SCEP provisioner to create certificates without completing certain protocol authorization checks.

Updated under an hour ago (Oct 27, 2026, 1:10 AM ET)

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It affects smallstep Step-CA. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for smallstep Step-CA

Exploited in the last 30 days

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

CVSS: 10.0 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Weakness (CWE): CWE-287
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: talos
NVD analysis: Deferred
Record last updated: Dec 17, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

smallstep Step-CA smallstep:step_ca (from the name)	0.28.4; v0.28.3	CNA record

References

References

https://talosintelligence.com/vulnerability_reports/TALOS-2025-2242
https://github.com/smallstep/certificates/security/advisories/GHSA-h8cp-697h-8c8p
https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2242

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.