CVE-2023-6640 Silicon Labs PC Controller v5.54.0 and Earlier Denial of Service Vulnerability
Attackers can crash Silicon Labs PC Controller by sending malformed S2 Nonce Get Command Class packets, requiring an upgrade to mitigate.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-6640?
CVE-2023-6640 is a medium-severity denial of service vulnerability in silabs.com PC Controller, published on 21 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Malformed S2 Nonce Get Command Class packets can be sent to crash PC Controller v5.54.0 and earlier.
Weakness: CWE-248
Which versions are affected by CVE-2023-6640?
It affects 1 product.
Products include Silabs Z-Wave Pc-Based Controller.
How do I fix CVE-2023-6640?
No fix has been published for CVE-2023-6640 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-6640 being exploited?
There is no known exploitation of CVE-2023-6640 in the wild and no public exploit code.
Other vulnerabilities in silabs.com PC Controller
Sources
Also known as GHSA-q8rx-w8h7-j8xw.