CVE-2026-5706

Severity CVSS v4.0:

HIGH

Type:

Unavailable / Other

Publication date:

28/08/2026

Last modified:

28/08/2026

Description

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.

Impact

Vector 4.0

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 CVSS v4.0 Severity and Metrics:

Base Score: 8.90 HIGH
Vector: 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

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Attack Requirements (AT): Present
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): High
Integrity (VI): High
Availability (VA): High
Confidentiality (SC): Low
Integrity (SI): Low
Availability (SA): High

Base Score 4.0

8.90

Severity 4.0

HIGH

CVE-2026-5706

Description

Impact

References to Advisories, Solutions, and Tools