CVE intelligence

CVE-2026-66147

Vulnerability intelligence

Published Aug 11, 2026Sources checked Oct 7, 2026

9.4CRITICALCVSS out of 10

What this means

Review the available evidence

CVE-2026-66147 and is rated Critical severity with a CVSS score of 9.4. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

SonicWall PSIRT Advisories guidance

Vendor revision: Aug 11, 2026

Install the applicable fixed SonicWall release for your product and branch.

Vendor-listed releases

GMS - Virtual Appliance and Windows: 9.5.2

CISA KEVNot listedBased on the latest collected catalog

EPSS1.8%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-66147?

An unauthenticated command injection vulnerability was identified in the GMS Dispatcher Service in GMS 9.5.1 and earlier versions which allows remote attacker to perform remote code execution through specially crafted requests.

Source: NVD