CVE-2020-9061: Z-Wave devices using Silicon Labs 500 and 700 series chipsets, including but not likely limited to the SiLabs
36
Routine
MEDIUM 6.5MITIGATEMITIGATEMITIGATE
CVE-2020-9061 is a medium-severity flaw (CVSS 6.5) affecting zw090-a, sth-eth-200, uzb-7. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Z-Wave devices using Silicon Labs 500 and 700 series chipsets, including but not likely limited to the SiLabs UZB-7 version 7.00, ZooZ ZST10 version 6.04, Aeon Labs ZW090-A version 3.95, and Samsung STH-ETH-200 version 6.04, are susceptible to denial of service via malformed routing messages.
Why this priority
No elevated risk signals yet
No fix is published yet: follow the downgrade or mitigation steps.
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
Published CVE record published
Updated Record last modified
aeotec zw090-a MITIGATE
Affected: 3.95
Fixed in: no fixed release known
Safe to downgrade to: a release before 3.95
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.
samsung sth-eth-200 MITIGATE
Affected: 6.04
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.04
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.
silabs uzb-7 MITIGATE
Affected: 7.00
Fixed in: no fixed release known
Safe to downgrade to: a release before 7.00
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.
zooz zst10 MITIGATE
Affected: 6.04
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.04
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.
silabs 500 series 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.
silabs 700 series 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 sourceNVD · 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-2020-9061?
zw090-a: mitigate or apply the listed mitigation; sth-eth-200: mitigate or apply the listed mitigation; uzb-7: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2020-9061 being exploited?
CVE-2020-9061 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-2020-9061 affect?
CVE-2020-9061 affects zw090-a, sth-eth-200, uzb-7. Severity is medium (CVSS 6.5). Z-Wave devices using Silicon Labs 500 and 700 series chipsets, including but not likely limited to the SiLabs UZB-7 version 7.00, ZooZ ZST10 version 6.04, Aeon Labs ZW090-A version 3.95, and Samsung STH-ETH-200 version 6.04, are susceptible
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