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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-47091

19
FAUCET Score

CVE-2023-47091 is a high-severity vulnerability affecting Stormshield Network Security (SNS) versions 4.3.13-4.3.22, 4.6.0-4.6.9, and 4.7.0-4.7.1. This flaw, categorized as a buffer overflow (CWE-120), allows an unauthenticated remote attacker to disrupt IPsec connections by overflowing the cookie threshold. With a CVSS score of 7.5, the vulnerability has a high impact on availability, requiring no user interaction or privileges to exploit. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.3.13, < 4.3.23CPE matchmatch criteria
cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:*
>= 4.6.0, < 4.6.10CPE matchmatch criteria
cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:*
>= 4.7.0, < 4.7.2CPE matchmatch criteria
cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.53%
Probability of exploitation in next 30 days
EPSS Percentile
41.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0053 is in the 19th percentile among its peer group of 51,553 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

advisories.stormshield.eu
Vendor Advisory
advisories.stormshield.eu / 2023-024
Vendor Advisory