CVE-2020-9285: Some versions of Sonos One (1st and 2nd generation) allow partial or full memory access via attacker controlle

This month

MEDIUM 6.8MITIGATE

CVE-2020-9285 is a medium-severity flaw (CVSS 6.8) affecting one firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Some versions of Sonos One (1st and 2nd generation) allow partial or full memory access via attacker controlled hardware that can be attached to the Mini-PCI Express slot on the motherboard that hosts the WiFi card on the device.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Physical
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 57%)
CISA exploited list	No
Weakness	CWE-1191
Published	2022-10-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sonos

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-10-20 17:15 UTCPublished CVE record published
2026-06-17 03:27 UTCUpdated Record last modified

sonos one firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-9285?

one firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-9285 being exploited?

CVE-2020-9285 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-9285 affect?

CVE-2020-9285 affects one firmware. Severity is medium (CVSS 6.8). Some versions of Sonos One (1st and 2nd generation) allow partial or full memory access via attacker controlled hardware that can be attached to the Mini-PCI Express slot on the motherboard that hosts the WiFi card on the device.

How urgent is CVE-2020-9285?

Priority 40/100. Public exploit reference

Software pages

Wi-Fi vulnerabilities

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References

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