CVE-2020-10185

HighCVSS 8.6/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Weakness enumeration

CWE-294

Affected software

No affected versions have been published.

Timeline

Published: Mar 5, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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