Connection possible to the administration portal with revoked certificate

Advisory ID CVE Number Date discovered Severity Advisory revision
STORM-2026-002 11/05/2025 low v2

Vulnerability details

A legitimate user connecting to the admin portal via a certificate will still be able to connect despite the revocation of that certificate.

Impacted products

ProductsSeverityDetail
Stormshield Network Security low SNS is impacted

Revisions

Version Date Description
v1 02/19/2026 Initial release
v2 05/21/2026 Published as disclosed


Stormshield Network Security

CVSS v3.1 Overall Score: 3.9      

Analysis

Impacted version

A legitimate user connecting to the admin portal via a certificate will still be able to connect despite the revocation of that certificate.

 
  • SNS 5.0.2 EA to 5.0.5
  • SNS 4.4.0 to 4.8.15
  • SNS 4.3.0 to 4.3.41

Workaround solution

Solution

Run the “nrestart sld” command after the certificate is revoked, or disable certificate‑based authentication.

The following updates will fix this vulnerability:

  • SNS 5.0.6
  • SNS 4.8.16
  • SNS 4.3.42


Attack Vector Attack Complexity Privileges Required User Interaction Scope Confidentiality Impact Integrity Impact Availability impact
Adjacent Network Low None None Unchanged Low None None
CVSS Base score: 4.3 CVSS Vector: (AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
Exploit Code Maturity Remediation Level Report Confidence
Proof of concept code Official fix Confirmed
CVSS Temporal score: 3.9 CVSS Vector: (AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C)
Confidentiality Requirement (CR) Integrity Requirement (IR) Availability Requirement (AR)
Medium Medium Medium
CVSS Environmental score: 3.9 CVSS Vector: (AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C/CR:M/IR:M/AR:M/MAV:X/MAC:X/MPR:X/MUI:X/MS:X/MC:X/MI:X/MA:X)