What is CVE-2023-5310?

CVE-2023-5310 is a medium-severity vulnerability in Silabs Z-Wave Long Range 700, classified under CWE-248. CVSS score: 5.7/10. Published 2023-12-15.

How severe is CVE-2023-5310?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Vulnerability in Silabs Z-Wave Long Range 700

CVE-2023-5310

A denial of service vulnerability exists in all Silicon Labs Z-Wave controller and endpoint devices running Z-Wave SDK v7.20.3 (Gecko SDK v4.3.3) and earlier. This attack can be carried out only by devices on the network sending a stream of packets to the device.

Published 2023-12-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (27.1th percentile), scored 2026-10-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-248

References

github.com/SiliconLabs/gecko_sdk/releases (Release Notes)
siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm000… (Permissions Required, vendor-advisory)

Frequently asked questions

What is CVE-2023-5310?: CVE-2023-5310 is a medium-severity vulnerability in Silabs Z-Wave Long Range 700, classified under CWE-248. CVSS score: 5.7/10. Published 2023-12-15.
How severe is CVE-2023-5310?: Medium severity. CVSS v3 base score is 5.7 out of 10.