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CVE-2023-5310

Z-Wave Denial of Service caused by Stream of Packets

MEDIUM
6.5
CVSS Score
Published: December 15, 2023 at 04:05 PM UTC
Updated: June 17, 2026 at 06:48 AM UTC
4 products affected across 2 vendorsZ Wave Software Development KitZ-Wave Long Range 800Z-Wave Long Range 700

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Z Wave Software Development Kit· Silabs
95%
v ≤ 7.20.2.0
silabs-z-wave-long-range-700 (environment) · silabs-z-wave-long-range-800 (environment)
Gecko SDK· Silabs Com
60%
v ≤ 7.20.3
Z-Wave Long Range 700· Silabsdevice
80%
All versions
Z-Wave Long Range 800· Silabsdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Release Notes
Source: [email protected]
https://github.com/SiliconLabs/gecko_sdk/releases
Vendor AdvisoryPermissions Required
Source: [email protected]
https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm0000005E7EIAU?%20operationContext=S1

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUM[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-248NVD-CWE-noinfo

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