CVE-2026-4149: Sonos Era 300 SMB Response Out-Of-Bounds Access Remote Code Execution Vulnerability
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-4149?
CVE-2026-4149 is classified as a critical severity vulnerability due to its potential for remote code execution.
How do I fix CVE-2026-4149?
To mitigate CVE-2026-4149, users should update their Sonos Era 300 devices to the latest firmware version provided by Sonos.
What impact does CVE-2026-4149 have on my Sonos Era 300?
CVE-2026-4149 allows remote attackers to execute arbitrary code on affected installations of the Sonos Era 300.
Is authentication required to exploit CVE-2026-4149?
No, exploitation of CVE-2026-4149 does not require authentication, making it particularly dangerous.
When was CVE-2026-4149 disclosed?
CVE-2026-4149 was disclosed in 2026 as a security vulnerability affecting Sonos Era 300 devices.