Medium severity · published Jan 10, 2022
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
6.5
CVSS
0.8%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
5S
500 Series Firmware · Silabs
All versions, or not specified · source: NVD
BE
Be468 · Schlage
3.42 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-9059
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-9059
Broken Link
https://doi.org/10.1109/ACCESS.2021.3138768
Third Party Advisory
https://github.com/CNK2100/VFuzz-public
Broken Link
https://ieeexplore.ieee.org/document/9663293
Third Party Advisory
https://kb.cert.org/vuls/id/142629
Third Party Advisory
https://www.kb.cert.org/vuls/id/142629