CVE-2026-66146
Medium
Description
Multiple Cross-Site Scripting (XSS) vulnerabilities were identified in GMS 9.5.1 (Build 9510.1044) and earlier versions that allow a remote attacker to execute javascript script in a user's browser.
SeverityMedium
CVSS6.1
Exploit probability—
Product
GMS
PublishedAug 11, 2026
First seenAug 11, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| SonicWall GMS | 9.5.1 and earlier versions | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.