In Connect SDK 4.3.1 and earlier and Flex SDK 3.7.7 and earlier, a message with invalid security settings may bypass authentication resulting in network disruption. This vulnerability does not allow an attacker to gain the Network Key or otherwise break confidentiality.
Advisories

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Fixes

Solution

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Workaround

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History

Thu, 22 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
Description In Connect SDK 4.3.1 and earlier and Flex SDK 3.7.7 and earlier, a message with invalid security settings may bypass authentication resulting in network disruption. This vulnerability does not allow an attacker to gain the Network Key or otherwise break confidentiality.
Title Dis-connect vulnerability in Connect Stack
Weaknesses CWE-940
References
Metrics cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Silabs

Published:

Updated: 2026-10-22T16:01:08.434Z

Reserved: 2026-07-24T13:33:53.357Z

Link: CVE-2026-66279

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-22T14:17:43.840

Modified: 2026-10-22T15:27:57.680

Link: CVE-2026-66279

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-22T16:30:08Z

Weaknesses