CVE-2021-31814
In Stormshield 1.1.0, and 2.1.0 through 2.9.0, an attacker can block a client from accessing the...
In Stormshield 1.1.0, and 2.1.0 through 2.9.0, an attacker can block a client from accessing the VPN and can obtain sensitive information through the SN VPN SSL Client.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
In Stormshield 1.1.0, and 2.1.0 through 2.9.0, an attacker can block a client from accessing the VPN and can obtain sensitive information through the SN VPN SSL Client.
- Record
CVE-2021-31814- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H - CVSS 2.0
- 3.6 Low
AV:L/AC:L/Au:N/C:P/I:N/A:P - Weakness
- CWE-306
- Updated
- 2026-11-02
CVE List No score
In Stormshield 1.1.0, and 2.1.0 through 2.9.0, an attacker can block a client from accessing the VPN and can obtain sensitive information through the SN VPN SSL Client.
- Record
CVE-2021-31814- Updated
- 2026-11-02
EUVDEUVD-2021-18690 No score
In Stormshield 1.1.0, and 2.1.0 through 2.9.0, an attacker can block a client from accessing the VPN and can obtain sensitive information through the SN VPN SSL Client.
- Record
EUVD-2021-18690- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pwhp-6h3m-r2xh
In Stormshield 1.1.0, and 2.1.0 through 2.9.0, an attacker can block a client from accessing the...
In Stormshield 1.1.0, and 2.1.0 through 2.9.0, an attacker can block a client from accessing the VPN and can obtain sensitive information through the SN VPN SSL Client.
- Record
GHSA-pwhp-6h3m-r2xh- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H - Weakness
- CWE-668
- 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-2021-31814 is a medium vulnerability (CVSS 6.1) 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 0.20%, the 10th percentile. No source names a fixed version.