How severe is CVE-2022-27812?

CVE-2022-27812 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-27812 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-27812?

CVE-2022-27812 affects Stormshield Stormshield Network Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-27812?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-27812 published?

CVE-2022-27812 was published on 2022-08-24 and last updated on 2026-06-17.

CVE-2022-27812

CVE-2022-27812 is a high-severity vulnerability in Stormshield Stormshield Network Security with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Stormshield Stormshield Network Security
Published: 2022-08-24
Last modified: 2026-06-17

Description

Flooding SNS firewall versions 3.7.0 to 3.7.29, 3.11.0 to 3.11.17, 4.2.0 to 4.2.10, and 4.3.0 to 4.3.6 with specific forged traffic, can lead to SNS DoS.

Frequently asked questions

What is CVE-2022-27812?: Flooding SNS firewall versions 3.7.0 to 3.7.29, 3.11.0 to 3.11.17, 4.2.0 to 4.2.10, and 4.3.0 to 4.3.6 with specific forged traffic, can lead to SNS DoS.
How severe is CVE-2022-27812?: CVE-2022-27812 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-27812 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-27812?: CVE-2022-27812 affects Stormshield Stormshield Network Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-27812?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-27812 published?: CVE-2022-27812 was published on 2022-08-24 and last updated on 2026-06-17.

References

https://advisories.stormshield.eu/2022-009/

Affected products (1)

cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:*

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