VULNERABILITY INTELLIGENCE

CVE-2022-24402

CVSS score8.8 HIGH
EPSS probability0.60%
CISA KEVNot currently listed
Published2023-10-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The TETRA TEA1 keystream generator implements a key register initialization function that compresses the 80-bit key to only 32 bits for usage during the keystream generation phase, which is insufficient to safeguard against exhaustive search attacks.

Weakness classification

  • cert@ncsc.nl: CWE-334
  • nvd@nist.gov: CWE-307

Primary references