CVE-2023-6640
Silicon Labs PC Controller v5.54.0 and Earlier Denial of Service Vulnerability
Malformed S2 Nonce Get Command Class packets can be sent to crash PC Controller v5.54.0 and earlier.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Silicon Labs PC Controller v5.54.0 and Earlier Denial of Service Vulnerability
Malformed S2 Nonce Get Command Class packets can be sent to crash PC Controller v5.54.0 and earlier.
- Record
CVE-2023-6640- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-248
- Updated
- 2026-11-02
EUVDEUVD-2023-58863
Malformed S2 Nonce Get Command Class packets can be sent to crash PC Controller v5.54.0 and earlier.
- Record
EUVD-2023-58863- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-q8rx-w8h7-j8xw
Malformed S2 Nonce Get Command Class packets can be sent to crash PC Controller v5.54.0 and...
Malformed S2 Nonce Get Command Class packets can be sent to crash PC Controller v5.54.0 and earlier.
- Record
GHSA-q8rx-w8h7-j8xw- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-248, CWE-754
- Updated
- 2026-11-02
NVD
Malformed S2 Nonce Get Command Class packets can be sent to crash PC Controller v5.54.0 and earlier.
- Record
CVE-2023-6640- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-248
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-6640 is a medium vulnerability (CVSS 6.5) in Silabs.com Pc Controller, published February 21, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 19th percentile. No source names a fixed version.