CVE-2023-4489 (GCVE-0-2023-4489)

Vulnerability from cvelistv5 – Published: 2023-12-14 23:00 – Updated: 2025-05-21 14:29
VLAI
Title
Z/IP Gateway Use of Uninitialized PRNG when Generating S0 Encryption Key
Summary
The first S0 encryption key is generated with an uninitialized PRNG in Z/IP Gateway products running Silicon Labs Z/IP Gateway SDK v7.18.3 and earlier. This makes the first S0 key generated at startup predictable, potentially allowing network key prediction and unauthorized S0 network access.
Severity
6.4 (Medium)
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-21 14:28 UTC
CWE
  • CWE-1279 - Cryptographic Operations are run Before Supporting Units are Ready
Assigner
Silabs CNA under the mitre root
CNA scorecard B 84/100 over 42 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
silabs.com Z/IP Gateway SDK Affected: 0 , ≤ 7.18.3 (LessThan)
guessed Create a notification for this product.
Show details on NVD website
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