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 msprox endpoint. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-19846.
References (1)
Core 1
Core References
Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-23-448/
Scores
CVSS v3
6.5
EPSS
0.0007
EPSS Percentile
20.5%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-125
Status
published
Products (3)
sonos/one_firmware
70.3-35220
sonos/s1
< 11.7.1
sonos/s2
< 15.1
Published
Apr 20, 2023
Tracked Since
Feb 18, 2026