Multiple vulnerabilities in Stormshield Network Security (August 14, 2026)

unknownCVE-2026-35330 CVE-2026-34180 CVE-2026-35332 CVE-2026-7383 CVE-2026-25075 CVE-2026-35328

Multiple vulnerabilities have been discovered in Stormshield Network Security. Some of them allow an attacker to cause remote arbitrary code execution, remote denial of service and data confidentiality breach.

CSIRTS triage

vendor: Stormshield product: Stormshield Network Security Remote code execution Denial of service Information disclosure

What: Multiple vulnerabilities in Stormshield Network Security enable remote code execution, denial of service, and data confidentiality breaches.
Who is affected: Stormshield Network Security appliances and systems running affected versions.
Urgency: Critical; remote code execution in a security appliance poses extreme risk and demands immediate patching.
Action: Apply security updates from Stormshield for the affected product versions without delay.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-FR Avis de sécurité (FR · national-cert · site)
Severity: unknown
Published: 2026-08-14
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1021/

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Moderate exploitation riskCVE-2026-341801.0% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 61% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-73830.63% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 47% of all EPSS-scored CVEs.
Moderate exploitation riskCVE-2026-250751.0% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 60% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-350580.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-402150.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-35330	coverage & exploitation status	NVD · CVE.org
CVE-2026-34180	coverage & exploitation status	NVD · CVE.org
CVE-2026-35332	coverage & exploitation status	NVD · CVE.org
CVE-2026-7383	coverage & exploitation status	NVD · CVE.org
CVE-2026-25075	coverage & exploitation status	NVD · CVE.org
CVE-2026-35328	coverage & exploitation status	NVD · CVE.org
CVE-2026-35058	coverage & exploitation status	NVD · CVE.org
CVE-2026-47895	coverage & exploitation status	NVD · CVE.org
CVE-2026-40215	coverage & exploitation status	NVD · CVE.org

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