High 8.9Published Aug 27, 2026

CVE-2026-5706Buffer overflow in Bluetooth Mesh SDK when handling extended advertisements

Updated under an hour ago (2026-10-19 08:00 UTC)

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It affects Silicon Labs BT Mesh SDK. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Silicon Labs BT Mesh SDK

Exploited in the last 30 days

In Bluetooth Mesh SDK 6.1.4 and earlier, malformed extended advertisements can trigger out-of-bounds writes leading to stack corruption and remote code execution. These messages must come from a device that has already joined the network. Only provisioners supporting extended advertisements may be impacted.

CVSS: 8.9 HIGH (v4.0, CNA)CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:H
Weakness (CWE): CWE-130
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Silabs
NVD analysis: Awaiting Analysis
Record last updated: Aug 28, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Silicon Labs BT Mesh SDK silicon_labs:bt_mesh_sdk (from the name)	through 6.1.4, 9.1.0	CNA record

References

https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/a45Vm000000Et6HIAS?operationContext=S1vendor-advisory, permissions-required
https://github.com/SiliconLabs/gecko_sdk/releasespatch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.