CVE-2018-19983 describes a Denial of Service vulnerability affecting Sigma Design Z-Wave S0 and S2 devices, including specific Silabs Z-Wave firmware versions. An attacker can exploit this by continuously sending fragmented "Nonce Get" frames, causing the device to repeatedly generate new nonces and discard previous ones. This prevents the decryption of legitimate, encrypted frames, leading to a denial of service. The vulnerability has a CVSS score of 6.5 (MEDIUM), indicating an attack vector requiring adjacent network access with low complexity, and a high impact on availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:silabs:z-wave_s0_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:silabs:z-wave_s2_firmware:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.