VULNERABILITY INTELLIGENCE

CVE-2020-10185

CVSS score8.6 HIGH
EPSS probability1.68%
CISA KEVNot currently listed
Published2020-03-05
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Description

The sync endpoint in YubiKey Validation Server before 2.40 allows remote attackers to replay an OTP. NOTE: this issue is potentially relevant to persons outside Yubico who operate a self-hosted OTP validation service with a non-default configuration such as an open sync pool; the issue does NOT affect YubiCloud.

Weakness classification

  • CWE-294: Authentication Bypass by Capture-replay

Primary references