Z-Wave S0 Decryption Vulnerability in End Devices

published 2024-03-07 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-56116

cvss: 8.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits: 0; none known

The vulnerability described by CVE-2023-0972 has been additionally discovered in Silicon Labs Z-Wave end devices. This vulnerability may allow an unauthenticated attacker within Z-Wave range to overflow a stack buffer, leading to arbitrary code execution.

Patch / fix

fixed in 1

Silicon Labs Z-Wave SDK 7.17.5, 7.18.8, 7.19.3, 7.20.0

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-08-27)

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.8	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Silicon Labs Z-Wave SDK
silabs z-wave_software_development_kit

Classification

Weakness

CWE-787 Out-of-bounds Write
CWE-125 Out-of-bounds Read

References

community.silabs.com /068Vm0000029Xq5

Sources

CVE List CVE-2023-51395
NVD CVE-2023-51395

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary