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Vulnerability record · CVE-2023-47091 · published 25 December 2023

CVE-2023-47091: Stormshield network security classic buffer overflow vulnerability

Stormshield · Stormshield Network Security

An issue was discovered in Stormshield Network Security (SNS) SNS 4.3.13 through 4.3.22 before 4.3.23, SNS 4.6.0 through 4.6.9 before 4.6.10, and SNS 4.7.0 through 4.7.1 before 4.7.2. An attacker can overflow the cookie threshold, making an IPsec connection impossible.

7.5 CVSS 3.1 High EPSS 0.53% · top 57.4% CWE-120 · Classic buffer overflow
7.5CVSS 3.1 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

An issue was discovered in Stormshield Network Security (SNS) SNS 4.3.13 through 4.3.22 before 4.3.23, SNS 4.6.0 through 4.6.9 before 4.6.10, and SNS 4.7.0 through 4.7.1 before 4.7.2. An attacker can overflow the cookie threshold, making an IPsec connection impossible.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://advisories.stormshield.eu Vendor Advisory
https://advisories.stormshield.eu/2023-024/ Vendor Advisory
https://advisories.stormshield.eu Vendor Advisory
https://advisories.stormshield.eu/2023-024/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-47091), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.