What’s Vulnerable › Vulnerabilities
CVE-2026-4149: Sonos Era 300 SMB Response Out-Of-Bounds Access Remote Code Execution Vulnerability
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.0% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-11 · updated 2026-10-26
- Weakness: CWE-119
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.
Affected products
- Sonos Era 300: before 83.1-61240 — fixed in 83.1-61240
How to fix
Upgrade to a fixed version: Sonos Era 300 83.1-61240. Check the vendor advisory for mitigations.
References
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