An issue was discovered in Stormshield SNS through 4.2.1.
Priority LOW 35CWE-307Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-307.
Summary
An issue was discovered in Stormshield SNS through 4.2.1. A brute-force attack can occur.
Why it matters now
EPSS 0.00944 61st percentileScored 2026-11-08
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:stormshield_network_security:*:*:*:*:*:*:*:* | 2.0.0 – 2.7.9; 2.8.0 – 2.16.0; 3.0.0 – 3.7.19; 3.8.0 – 3.11.7; 4.0.0 – 4.1.5 | Vulnerable | Stormshield |
| cpe:2.3:a:stormshield:stormshield_network_security:4.2.1:*:*:*:*:*:*:* | 4.2.1 | Vulnerable | Stormshield |
- cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:* Versions 2.0.0 – 2.7.9; 2.8.0 – 2.16.0; 3.0.0 – 3.7.19; 3.8.0 – 3.11.7; 4.0.0 – 4.1.5 Vulnerable ·Stormshield
- cpe:2.3:a:stormshield:stormshield_network_security:4.2.1:*:*:*:*:*:*:* Versions 4.2.1 Vulnerable ·Stormshield
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-28127
- 2026-10-03 Alias added: GHSA-xgxp-cc5r-jfjq
References
More Stormshield Network Security vulnerabilities
- TI-2022-17498 zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in… CVSS 3.1CRITICAL 9.8
- TI-2023-00271 X.400 address type confusion in X.509 GeneralName CVSS 3.1HIGH 7.4
- TI-2023-06741 Buffer overflow in Cisco Secure Web Appliance CVSS 3.1CRITICAL 9.8
- TI-2022-04067 Double free after calling PEM_read_bio_ex CVSS 3.1HIGH 7.5
- TI-2002-02356 The Diffie-Hellman Key Agreement Protocol allows remote attackers (from the client side)… CVSS 3.1HIGH 7.5
- TI-2020-05988 Out-of-bounds write in MPD: FreeBSD PPP daemon CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-28127 · CVE Program
- CVE-2021-28127 · NVD
- FIRST EPSS
- GHSA-xgxp-cc5r-jfjq · GitHub Advisory Database · CC BY 4.0
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