CVE-2021-3398
CVE-2021-3398 is a medium-severity vulnerability in Stormshield Stormshield Network Security with a CVSS 3.x base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-190.
Key facts
- Severity: Medium (CVSS 3.x base score 5.8)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (56th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-190
- Affected product: Stormshield Stormshield Network Security
- Published:
- Last modified:
Description
Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.
Frequently asked questions
- What is CVE-2021-3398?
- Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.
- How severe is CVE-2021-3398?
- CVE-2021-3398 has a CVSS 3.x base score of 5.8, rated medium 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 low.
- Is CVE-2021-3398 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-3398?
- CVE-2021-3398 affects Stormshield Stormshield Network Security. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-3398?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-3398 published?
- CVE-2021-3398 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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