CVEvulnerability

CVE-2023-4489

9.8 CRITICAL Published 2023-12-14 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-12-14
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.4 MEDIUM — CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-1279, CWE-908

Description

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.

Affected configurations

• silabs z\/ip gateway sdk (<= 7.18.03)

Related

Weakness · CWE (2)

  • CWE-1279 Cryptographic Operations are Run Before Supporting Units are Ready weakness
  • CWE-908 Use of Uninitialized Resource weakness

References