CVE-2026-4149

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.zerodayinitiative.com/advisories/ZDI-26-192/	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:sonos:era_300_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:sonos:era_300:-:*:*:*:*:*:*:*

History

15 Apr 2026, 12:26

Type	Values Removed	Values Added
CPE		cpe:2.3:o:sonos:era_300_firmware:::::::: cpe:2.3:h:sonos:era_300:-:::::::*
First Time		Sonos era 300 Sonos era 300 Firmware Sonos
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-26-192/ -~~	() https://www.zerodayinitiative.com/advisories/ZDI-26-192/ - Third Party Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~10.0~~	v2 : unknown v3 : 9.8

11 Apr 2026, 01:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-11 01:16

Updated : 2026-06-17 10:56

NVD link : CVE-2026-4149

Mitre link : CVE-2026-4149

CVE.ORG link : CVE-2026-4149

JSON object : View

Products Affected

sonos

era_300
era_300_firmware

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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