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CVE-2023-6533

Silicon Labs PC Controller Denial of Service Vulnerability

MEDIUM
6.5
CVSS Score
Published: February 21, 2024 at 07:55 PM UTC
Updated: June 17, 2026 at 06:50 AM UTC
2 products affected across 2 vendorsZ Wave Pc Based ControllerZ Wave Pc Based Controller

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

Description

Malformed Device Reset Locally Command Class packets can be sent to the controller, causing the controller to assume the end device has left the network. After this, frames sent by the end device will not be acknowledged by the controller. This vulnerability exists in PC Controller v5.54.0, and earlier.

Affected

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

Remediation

No guide yet

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

Patch and advisory references

References (1)

Vendor AdvisoryPermissions Required
Source: [email protected]
https://community.silabs.com/068Vm000001HdNm

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

6.5MEDIUMSilabs
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-248CWE-419NVD-CWE-noinfo

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