VULNERABILITY INTELLIGENCE

CVE-2021-43399

CVSS score7.5 HIGH
EPSS probability1.41%
CISA KEVNot currently listed
Published2021-12-08
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

The Yubico YubiHSM YubiHSM2 library 2021.08, included in the yubihsm-shell project, does not properly validate the length of some operations including SSH signing requests, and some data operations received from a YubiHSM 2 device.

Weakness classification

  • nvd@nist.gov: CWE-787

Primary references