CVE-2023-6640
CVE-2023-6640 is a medium-severity vulnerability in Silabs Z-wave Pc-based Controller with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-248.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 0% (19th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2023-58863
- Weakness: CWE-248
- Affected product: Silabs Z-wave Pc-based Controller
- Published:
- Last modified:
Description
Malformed S2 Nonce Get Command Class packets can be sent to crash PC Controller v5.54.0 and earlier.
Frequently asked questions
- What is CVE-2023-6640?
- Malformed S2 Nonce Get Command Class packets can be sent to crash PC Controller v5.54.0 and earlier.
- How severe is CVE-2023-6640?
- CVE-2023-6640 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2023-6640 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-6640?
- CVE-2023-6640 affects Silabs Z-wave Pc-based Controller. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-6640?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2023-6640 have an EU (EUVD) identifier?
- Yes. CVE-2023-6640 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58863.
- When was CVE-2023-6640 published?
- CVE-2023-6640 was published on 2024-02-21 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:silabs:z-wave_pc-based_controller:*:*:*:*:*:*:*:*
More vulnerabilities in Silabs Z-wave Pc-based Controller
- CVE-2023-6533 — Medium (CVSS 6.5): Malformed Device Reset Locally Command Class packets can be sent to the controller, causing the controller to assume…
All CVEs affecting Silabs Z-wave Pc-based Controller →
Other CWE-248 vulnerabilities
- CVE-2018-11466 — Critical (CVSS 9.8): A vulnerability has been identified in SINUMERIK 808D V4.7 (All versions), SINUMERIK 808D V4.8 (All versions),…
- CVE-2024-42037 — Critical (CVSS 9.3): Vulnerability of uncaught exceptions in the Graphics module Impact: Successful exploitation of this vulnerability may…
- CVE-2025-53620 — Critical (CVSS 9.2): @builder.io/qwik-city is the meta-framework for Qwik. When a Qwik Server Action QRL is executed it dynamically load the…
- CVE-2026-46689 — High (CVSS 8.7): Kanidm is an identity management platform. Prior to version 1.9.3, a single unauthenticated GET to any /scim/v1/...…
- CVE-2026-9509 — High (CVSS 8.7): An unhandled exception in Suprema BioStar 2 (Server), versions 2.9.8, 2.9.10, and 2.9.11, that allows an…
- CVE-2025-9124 — High (CVSS 8.7): A denial-of-service security issue in the affected product. The security issue stems from a fault occurring when a…