High
Dis-connect vulnerability in Connect Stack
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.
Announced Group revision 1
Original source ↗CVE-2026-66279
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-66279
Connect SDK
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/SiliconLabs/simplicity_sdk",
"vendor": "Silicon Labs",
"product": "Connect SDK",
"versions": [
{
"status": "affected",
"version": "4.0.0",
"versionType": "semver",
"lessThanOrEqual": "4.3.1"
},
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "3.7.7"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-66279
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #52676 · Revision 1
- Added to Heist Feed
- Publisher date