CVE-2023-47091: stormshield stormshield_network_security Classic Buffer Overflow
CVSS: 7.5v3.1HighModified
Published 25-12-2023Last modified 23-04-2025
Vulnerability summary
CVE-2023-47091 is a high (CVSS 7.5) Classic Buffer Overflow vulnerability in stormshield stormshield_network_security. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 43.7% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.53%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 25-12-2023PublishedVulnerability first disclosed.
- 23-04-2025Last modifiedVulnerability information updated.
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 metrics
2 scores · 2 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.53%
Chance of exploitation in the next 30 days
Percentile
44%
Versus all other CVEs
30-day change
0.00 pp
From 0.53% on 19-09-2026
19-09-202619-10-2026
EPSS score0.53%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Stormshield1 product
- stormshield_network_security≥ 4.3.13, < 4.3.23 | ≥ 4.6.0, < 4.6.10 | ≥ 4.7.0, < 4.7.2
1 vendor · 1 product
References
2 links- advisories.stormshield.euVendor Advisory
- advisories.stormshield.eu/2023-024/Vendor Advisory