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

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

EPSS (exploitation in 30 days)

1.00% · top 37% of all CVEs (5 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: yes · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 10.0.

Weakness

• CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer (opens in a new tab)All about CWE-119 and its CVEs

Affected products

• Sonos · Era 300

  • affected 17.5 (build 91.0-70070)

References (1)

• ZDI-26-192 (opens in a new tab)x_research-advisory

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-4149](https://trackcve.app/badge/CVE-2026-4149.svg)](https://trackcve.app/cve/CVE-2026-4149)

Record last updated 13 Apr 2026, 16:16 UTC.