{"id":"CVE-2026-66279","revision":"01388b584d364417a3c528be565bf243","records":[{"revision":"01388b584d364417a3c528be565bf243","observedAt":"2026-10-23T16:01:20.601+00:00","statement":{"source":"cve-program","id":"CVE-2026-66279","aliases":[],"title":"Dis-connect vulnerability in Connect Stack","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.","state":0,"publishedAt":"2026-10-22T13:41:03.391+00:00","modifiedAt":"2026-10-23T10:56:10.379+00:00","affected":[{"ecosystem":"Vendor product","name":"Connect SDK","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Silicon Labs\",\n                    \"product\": \"Connect SDK\",\n                    \"repo\": \"https://github.com/SiliconLabs/simplicity_sdk\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"4.0.0\",\n                            \"lessThanOrEqual\": \"4.3.1\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"3.7.7\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","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","score":7.2,"severity":"HIGH"}],"references":["https://github.com/SiliconLabsSoftware/docs-security-advisories/blob/main/Advisories/500-599/A-00000588.md","https://github.com/SiliconLabsSoftware/sisdk-release/"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-66279","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-66279","identifiers":["CVE-2026-66279"]},"retained":false,"historicalAffected":[]}],"coverage":[]}