Cyber Resilience

CVE-2023-47091

High

Published: 25 December 2023

Published
25 December 2023
Modified
23 April 2025
KEV Added
Patch
CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0018 39.3th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-47091 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Stormshield Stormshield Network Security. Its CVSS base score is 7.5 (High).

Operationally, ranked at the 39.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

stormshield
stormshield network security
4.3.13 — 4.3.23 · 4.6.0 — 4.6.10 · 4.7.0 — 4.7.2

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References