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Vulnerability record · CVE-2023-27355 · published 20 April 2023

CVE-2023-27355: Sonos one firmware stack-based buffer overflow vulnerability

Sonos · One Firmware

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sonos One Speaker 70.3-35220. Authentication is not required to exploit this vulnerability. The specific flaw exists within the MPEG-TS parser. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19773.

8.8 CVSS 3.1 High EPSS 0.81% · top 44.7% CWE-121 · Stack-based buffer overflow
8.8CVSS 3.1 base score
0.81%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sonos One Speaker 70.3-35220. Authentication is not required to exploit this vulnerability. The specific flaw exists within the MPEG-TS parser. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19773.

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.zerodayinitiative.com/advisories/ZDI-23-449/ Third Party AdvisoryVDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-23-449/ Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-24049Sonos s1 stack-based buffer overflow vulnerabilityThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Sonos One Speaker prior to 3.4.1 (S2 systems) and 1…EPSS 7.2%8.8CVE-2025-1050Sonos s2 out-of-bounds write vulnerabilitySonos Era 300 Out-of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code…EPSS 0.42%8.8CVE-2025-1048Sonos s1 use after free vulnerabilitySonos Era 300 Speaker libsmb2 Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arb…EPSS 0.54%8.8CVE-2025-1049Sonos s1 heap-based buffer overflow vulnerabilitySonos Era 300 Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitra…EPSS 0.42%8.8CVE-2023-27352Sonos one firmware use after free vulnerabilityThis vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sonos One Speaker 70.3-35220. Authenticat…EPSS 0.78%8.8CVE-2022-24046Sonos s1 vulnerabilityThis vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sonos One Speaker prior to 3.4.1 (S2 syst…EPSS 4.1%6.8CVE-2020-9285Sonos one firmware vulnerabilitySome versions of Sonos One (1st and 2nd generation) allow partial or full memory access via attacker controlled hardware that can be attached to the …EPSS 0.48%6.5CVE-2023-27353Sonos one firmware out-of-bounds read vulnerabilityThis vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Sonos One Speaker 70.3-35220. Aut…EPSS 0.63%

Source: NIST National Vulnerability Database (record CVE-2023-27355), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.