CVE-2021-3398 json
Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.
published 2022-02-10 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26726
- cvss
- 5.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.
Exploit prediction
0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-190 Integer Overflow or Wraparound
References
-
stormshield.com
/category/alert/
vendor-advisory
-
advisories.stormshield.eu
/2021-001/
vendor-advisory
Sources
- CVE List CVE-2021-3398
- NVD CVE-2021-3398
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.