CVE intelligence

CVE-2026-66145

Vulnerability intelligence

Published Aug 11, 2026Sources checked Oct 7, 2026

9.1CRITICALCVSS out of 10

What this means

Review the available evidence

CVE-2026-66145 and is rated Critical severity with a CVSS score of 9.1. 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

EPSS0.7%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-66145?

An unauthenticated remote code execution vulnerability was identified in GMS 9.5.1 (Build 9510.1044) and earlier versions which allows remote attacker to read sensitive data and perform arbitrary file write via zipslip.

Source: NVD