CVE-2023-27354

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-04-20 · updated 2026-06-17
Weakness: CWE-190

Description

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Sonos One Speaker 70.3-35220. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of the SMB directory query command. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before reading from memory. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-19727.

Affected products

Sonos One Firmware: 70.3-35220
Sonos S1: before 11.7.1 — fixed in 11.7.1
Sonos S2: before 15.1 — fixed in 15.1

How to fix

Upgrade to a fixed version: Sonos S1 11.7.1; Sonos S2 15.1. Check the vendor advisory for mitigations.

References

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