CVE-2021-3398
Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.
Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
NVD Score used
Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.
- Record
CVE-2021-3398- CVSS 3.1
- 5.8 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-190
- Updated
- 2026-11-02
CVE List No score
Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.
- Record
CVE-2021-3398- Updated
- 2026-11-02
EUVDEUVD-2021-26726 No score
Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.
- Record
EUVD-2021-26726- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-p8x6-j8fm-7h4p No score
Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.
Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.
- Record
GHSA-p8x6-j8fm-7h4p- Weakness
- CWE-190
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-3398 is a medium vulnerability (CVSS 5.8) in Stormshield Network Security, published February 10, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.92%, the 60th percentile. No source names a fixed version.