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Vulnerability in Sonicwall SonicOS (August 6, 2026)

unknownCVE-2026-0516
A vulnerability has been discovered in Sonicwall SonicOS. It allows an attacker to cause a security policy bypass.

CSIRTS triage

vendor: SonicWallproduct: SonicOSMisconfiguration
What
A vulnerability in SonicWall SonicOS allows security policy bypass.
Who is affected
SonicWall firewalls running vulnerable SonicOS versions.
Urgency
High urgency due to potential bypass of firewall security policies; impacts network perimeter security.
Action
Apply SonicWall SonicOS patch for CVE-2026-0516.

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
2026-08-06
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-0972/

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.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-0516coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Sonicwall SonicOS

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from CERT-FR Avis de sécurité