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CVE-2026-66154

HIGH
8.3
CVSS Score
Published: August 11, 2026 at 08:12 PM UTC
Updated: October 24, 2026 at 04:10 PM UTC
1 product affected across 1 vendorGlobal Management System

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Severity
HIGH8.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Global Management System· SonicWall
90%
9.5.1 and earlier versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0011

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.3HIGHCISA-ADP
Attack Vector
ADJACENT_NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-295

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