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CVE-2020-9059: Z-Wave devices based on Silicon Labs 500 series chipsets using S0 authentication are susceptible to uncontroll

37
Routine
MEDIUM 6.5MITIGATEMITIGATE

CVE-2020-9059 is a medium-severity flaw (CVSS 6.5) affecting 500 series firmware, be468. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Z-Wave devices based on Silicon Labs 500 series chipsets using S0 authentication are susceptible to uncontrolled resource consumption leading to battery exhaustion. As an example, the Schlage BE468 version 3.42 door lock is vulnerable and fails open at a low battery level.

Why this priority

  • No elevated risk signals yet

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

Risk facts

CVSS score6.5 (Medium)
Attack vectorAdjacent network
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.8% (top 42%)
CISA exploited listNo
WeaknessCWE-400, CWE-770
Published2022-01-10
Last modified2026-06-17
Publisher (CNA): CERT/CC · Vendor: schlage · silabs

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

Am I affected?

Timeline

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.
schlage be468 MITIGATE
Affected: 3.42
Fixed in: no fixed release known
Safe to downgrade to: a release before 3.42
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-2020-9059?

500 series firmware: mitigate or apply the listed mitigation; be468: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-9059 being exploited?

CVE-2020-9059 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-2020-9059 affect?

CVE-2020-9059 affects 500 series firmware, be468. Severity is medium (CVSS 6.5). Z-Wave devices based on Silicon Labs 500 series chipsets using S0 authentication are susceptible to uncontrolled resource consumption leading to battery exhaustion. As an example, the Schlage BE468 version 3.42 door lock is vulnerable and f

How urgent is CVE-2020-9059?

Priority 37/100. No elevated risk signals yet.

Related CVEs

References

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