VulnerabilityModified
CVE-2021-3398
Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.
MEDIUM 5.8EPSS 0.92%
Does this matter?
Lower severity and a low EPSS score (0.92%). Track it; it rarely justifies an emergency change on its own.
Description
Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.
- CVSS 3.1
- 5.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
- EPSS
- 0.92% probability · 60th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- stormshield/stormshield network security
- Source
- cve@mitre.org
EPSS 0.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://advisories.stormshield.eu/2021-001/Vendor Advisory
- https://www.stormshield.com/category/alert/Vendor Advisory
- https://advisories.stormshield.eu/2021-001/Vendor Advisory
- https://www.stormshield.com/category/alert/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.