How severe is CVE-2021-28962?

CVE-2021-28962 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-28962 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-28962?

CVE-2021-28962 affects Stormshield Stormshield Network Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-28962?

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-2021-28962 published?

CVE-2021-28962 was published on 2022-01-31 and last updated on 2026-06-17.

CVE-2021-28962

CVE-2021-28962 is a high-severity vulnerability in Stormshield Stormshield Network Security with a CVSS 3.x base score of 7.2. 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 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Stormshield Stormshield Network Security
Published: 2022-01-31
Last modified: 2026-06-17

Description

Stormshield Network Security (SNS) before 4.2.2 allows a read-only administrator to gain privileges via CLI commands.

Frequently asked questions

What is CVE-2021-28962?: Stormshield Network Security (SNS) before 4.2.2 allows a read-only administrator to gain privileges via CLI commands.
How severe is CVE-2021-28962?: CVE-2021-28962 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-28962 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-28962?: CVE-2021-28962 affects Stormshield Stormshield Network Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-28962?: 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-2021-28962 published?: CVE-2021-28962 was published on 2022-01-31 and last updated on 2026-06-17.

References

Affected products (1)

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

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