Vulnerability in SonicWall Global VPN Client (August 10, 2026)

A vulnerability was discovered in SonicWall Global VPN Client. It allows an attacker to cause denial of service.

CSIRTS triage

What: A vulnerability in SonicWall Global VPN Client enables remote denial of service attacks.
Who is affected: Systems running SonicWall Global VPN Client accessible to remote attackers.
Urgency: Medium priority; denial of service impact requires timely remediation but lacks code execution risk.
Action: Apply SonicWall patches for Global VPN Client when available.

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

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

Low exploitation riskCVE-2026-661510.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.

CVE	CSIRTS overview	External
CVE-2026-66151	coverage & exploitation status	NVD · CVE.org

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