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CVE-2023-47091

HIGH
7.5
CVSS Score
Published: December 25, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 06:32 AM UTC
1 product affected across 1 vendorNetwork Security

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Network Security· Stormshield
95%
4.3.13 ≤ v < 4.3.234.6.0 ≤ v < 4.6.104.7.0 ≤ v < 4.7.2
Affected range stops below 4.3.23, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.6.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.7.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: [email protected]
https://advisories.stormshield.eu
Vendor Advisory
Source: [email protected]
https://advisories.stormshield.eu/2023-024/

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120

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