CVE-2020-9285Public exploit

Root code execution via unprotected Mini-PCIe DMA

Published Oct 20, 2022 · Updated May 8, 2025

Improper PCIe access control in Sonos One speakers allows physically proximate attackers to execute code as root through a DMA device. The Mini-PCI Express Wi-Fi slot accepts a spoofed PCI device and exposes system memory to unauthenticated DMA reads and writes. Physical access to open the speaker and attach specialized PCILeech-compatible hardware is required; the demonstrated memory patch starts a root shell without changing the filesystem.

CVSS severity6.8
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper PCIe access control in Sonos One speakers allows physically proximate attackers to execute code as root through a DMA device. The Mini-PCI Express Wi-Fi slot accepts a spoofed PCI device and exposes system memory to unauthenticated DMA reads and writes. Physical access to open the speaker and attach specialized PCILeech-compatible hardware is required; the demonstrated memory patch starts a root shell without changing the filesystem.

The record

CVE
CVE-2020-9285
Published
Oct 20, 2022
Updated
May 8, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1191, T1200
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 20, 2022CVE publishedPublication date reported by the CVE source.
  2. May 8, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.8CISA-ADPCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1191On-Chip Debug and Test Interface With Improper Access Control
T1200Hardware Additions

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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