CVE-2023-27353

MEDIUM
6.5
CVSS Score
Published: April 20, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:44 AM UTC
4 products affected across 1 vendorS2S1One Firmware

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

sonos-one (same device)
v < 11.7.1
Affected range stops below 11.7.1, so it looks safe — our inference, not a vendor statement
v < 15.1
Affected range stops below 15.1, so it looks safe — our inference, not a vendor statement
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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