CVE-2026-4149

Sonos Era 300 SMB Response Out-Of-Bounds Access Remote Code Execution Vulnerability

State
Published
Severity
10.0 Critical
Published
Apr 11, 2026
Updated
Apr 13, 2026
Reserved
Mar 13, 2026

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Description

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.

Scores

CVSSScoreVectorSource
3.010.0 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hzdi

Weaknesses

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

Affected Products

ProductVersions
Era 300Sonos
  • 17.5 (build 91.0-70070)Affected

References

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