Resource exhaustion in Schlage Be468

CVE-2020-9059

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.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.008 (54.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cret@cert.org (US Government Resource, x_refsource_CERT-VN, Third Party Advisory, third-party-advisory)
  • cret@cert.org (x_refsource_MISC, Broken Link)
  • cret@cert.org (Third Party Advisory, x_refsource_MISC)
  • cret@cert.org (x_refsource_MISC, Broken Link)
  • cret@cert.org (US Government Resource, x_refsource_CERT-VN, Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2020-9059?
CVE-2020-9059 is a medium-severity vulnerability in Schlage Be468, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2022-01-10.
How severe is CVE-2020-9059?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2020-9059 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.