Z-Wave devices based on Silicon Labs 700 series chipsets using S2 do not adequately authenticate or encrypt FIND_NODE_IN_RANGE frames, allowing a remote, unauthenticated attacker to inject a FIND_NODE_IN_RANGE frame with an invalid random payload, denying service by blocking the processing of upcoming events.

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-10137
• https://doi.org/10.1109/ACCESS.2021.3138768
• https://github.com/CNK2100/VFuzz-public
• https://ieeexplore.ieee.org/document/9663293
• https://kb.cert.org/vuls/id/142629
• https://www.kb.cert.org/vuls/id/142629