Out-of-bounds read in Sonos One Speaker
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Sonos | One Speaker | 70.3-35220 | — | No fix listed | CNA |
- One Speaker VendorSonos Affected 70.3-35220 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:sonos:one_firmware:70.3-35220:*:*:*:*:*:*:* | 70.3-35220 | Vulnerable | Sonos |
| cpe:2.3:h:sonos:one:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Sonos |
| cpe:2.3:a:sonos:s1:*:*:*:*:*:*:*:* | before 11.7.1 | Vulnerable | Sonos |
| cpe:2.3:a:sonos:s2:*:*:*:*:*:*:*:* | before 15.1 | Vulnerable | Sonos |
- cpe:2.3:o:sonos:one_firmware:70.3-35220:*:*:*:*:*:*:* Versions 70.3-35220 Vulnerable ·Sonos
- cpe:2.3:h:sonos:one:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Sonos
- cpe:2.3:a:sonos:s1:*:*:*:*:*:*:*:* Versions before 11.7.1 Vulnerable ·Sonos
- cpe:2.3:a:sonos:s2:*:*:*:*:*:*:*:* Versions before 15.1 Vulnerable ·Sonos
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-27353
- 2026-10-03 Alias added: GHSA-r8ff-24ff-cv98
- 2026-10-28 EPSS moved to the 50th–90th percentile
References
More Sonos One Firmware vulnerabilities
- TI-2020-07425 Some versions of Sonos One (1st and 2nd generation) allow partial or full memory access… CVSS 3.1MEDIUM 6.8
- TI-2023-12090 Stack-based buffer overflow in Sonos One Speaker CVSS 3.1HIGH 8.8
- TI-2023-12087 Use after free in Sonos One Speaker CVSS 3.1HIGH 8.8
- TI-2023-12089 Integer overflow in Sonos One Speaker CVSS 3.1MEDIUM 6.5
Sources
- CVE-2023-27353 · CVE Program
- CVE-2023-27353 · NVD
- FIRST EPSS
- GHSA-r8ff-24ff-cv98 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences