Out-Of-Bounds Access Vulnerability in Sonos Era 300
CVE-2026-4149

10CRITICAL

Key Information:

Vendor

Sonos

Status
Era 300
Vendor
CVE Published:
11 April 2026

What is CVE-2026-4149?

The Sonos Era 300 contains a vulnerability in its SMB response handling, specifically concerning the DataOffset field. This flaw arises from inadequate validation of user-supplied data, leading to memory access beyond allocated buffers. As a result, remote attackers can exploit this issue to execute arbitrary code without the need for authentication, potentially compromising the system's integrity and security.

Affected Version(s)

Era 300 17.5 (build 91.0-70070)

References

https://www.zerodayinitiative.com/advisories/ZDI-26-192/
x_research-advisory

CVSS V3.0

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.