CVE-2023-6640
Silicon Labs PC Controller v5.54.0 and Earlier Denial of Service Vulnerability
MEDIUM
6.5
CVSS Score
Published: February 21, 2024 at 07:56 PM UTC
Updated: June 17, 2026 at 06:51 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 S2 Nonce Get Command Class packets can be sent to crash PC Controller v5.54.0 and earlier.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 5.54
v ≤ 5.54.0
Remediation
No guide yetNo 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/068Vm000001HdNmSSVC — 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-248NVD-CWE-noinfo
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