What’s Vulnerable › Vulnerabilities

CVE-2026-66154

• Severity: high (CVSS 8.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-11 · updated 2026-10-24
• Weakness: CWE-295

Description

An insufficient certificate validation in a privileged communication workflow, was identified in a GMS application 9.5.1 (Build 9510.1044) and earlier versions which, under a successful MitM attack and controlled network conditions, could permit unauthorized changes.

Affected products

• SonicWall GMS: through 9.5.1

References

• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0011

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