How severe is CVE-2021-37613?

CVE-2021-37613 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-37613 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37613?

CVE-2021-37613 affects Stormshield Stormshield Network Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-37613?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-37613 published?

CVE-2021-37613 was published on 2022-02-10 and last updated on 2026-06-17.

CVE-2021-37613

CVE-2021-37613 is a medium-severity vulnerability in Stormshield Stormshield Network Security with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 2.9
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Stormshield Stormshield Network Security
Published: 2022-02-10
Last modified: 2026-06-17

Description

Stormshield Network Security (SNS) 1.0.0 through 4.2.3 allows a Denial of Service.

Frequently asked questions

What is CVE-2021-37613?: Stormshield Network Security (SNS) 1.0.0 through 4.2.3 allows a Denial of Service.
How severe is CVE-2021-37613?: CVE-2021-37613 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-37613 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37613?: CVE-2021-37613 affects Stormshield Stormshield Network Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-37613?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-37613 published?: CVE-2021-37613 was published on 2022-02-10 and last updated on 2026-06-17.

References

Affected products (1)

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

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