Stormshield SNS with versions before 3.7.18, 3.11.6 and 4.1.6 has a memory-management…
Priority LOW 35CWE-401Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-401.
Summary
Stormshield SNS with versions before 3.7.18, 3.11.6 and 4.1.6 has a memory-management defect in the SNMP plugin that can lead to excessive consumption of memory and CPU resources, and possibly a denial of service.
Why it matters now
EPSS 0.0099 62nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:stormshield:network_security:*:*:*:*:*:*:*:* | 3.0.0 to before 3.7.18 | Vulnerable | Stormshield |
| cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:* | 3.8.0 to before 3.11.5; 4.0.0 to before 4.1.5 | Vulnerable | Stormshield |
- cpe:2.3:a:stormshield:network_security:*:*:*:*:*:*:*:* Versions 3.0.0 to before 3.7.18 Vulnerable ·Stormshield
- cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:* Versions 3.8.0 to before 3.11.5; 4.0.0 to before 4.1.5 Vulnerable ·Stormshield
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-28665
- 2026-10-03 Alias added: GHSA-cg96-hc49-whwj
References
More Stormshield Network Security vulnerabilities
- TI-2021-20895 An issue was discovered in Stormshield Network Security (SNS) 4.2.2 through 4.2.7 (fixed… CVSS 3.1HIGH 7.5
- TI-2022-06956 In Stormshield SSO Agent 2.x before 2.1.1 and 3.x before 3.0.2, the cleartext user… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2021-28665 · CVE Program
- CVE-2021-28665 · NVD
- FIRST EPSS
- GHSA-cg96-hc49-whwj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences