CVE-2026-66281

In EmberZNet 9.1.1 and earlier, a malformed Discover Attributes command can result in a loop with unreachable exit condition (infinite loop). These messages must come from a device that has already joined the network. Only devices supporting manufacturer-specific clusters are impacted.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/SiliconLabsSoftware/docs-security-advisories/blob/main/Advisories/500-599/A-00000590.md	Mitigation Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:silabs:emberznet:*:*:*:*:*:*:*:*

History

29 Oct 2026, 13:09

Type	Values Removed	Values Added
CPE		cpe:2.3:a:silabs:emberznet::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
First Time		Silabs Silabs emberznet
References	~~() https://github.com/SiliconLabsSoftware/docs-security-advisories/blob/main/Advisories/500-599/A-00000590.md -~~	() https://github.com/SiliconLabsSoftware/docs-security-advisories/blob/main/Advisories/500-599/A-00000590.md - Mitigation, Patch, Vendor Advisory

22 Oct 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-22 14:17

Updated : 2026-10-29 13:09

NVD link : CVE-2026-66281

Mitre link : CVE-2026-66281

CVE.ORG link : CVE-2026-66281

JSON object : View

Products Affected

silabs

emberznet

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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