CVE-2026-4149 CRITICAL

CVE-2026-4149: Sonos Era 300 SMB Response Out-Of-Bounds Access Remote Code Execution Vulnerability

Vendor Sonos
Product Era 300
Weakness CWE-119
Published April 11, 2026
Last update April 13, 2026

CVSS base score

10.0/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

Sonos Era 300 SMB Response Out-Of-Bounds Access Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Sonos Era 300. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the DataOffset field within SMB responses. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the kernel. Was ZDI-CAN-28345.

Key dates

02Disclosure timeline

April 11, 2026 CVE published
April 13, 2026 Record updated