High severity8.6NVD Advisory· Published Mar 5, 2020· Updated Jun 17, 2026
CVE-2020-10185
CVE-2020-10185
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- YubiKey/Validation Serverdescription
- Range: <2.40
Patches
Vulnerability mechanics
References
3- www.yubico.com/support/security-advisories/ysa-2020-01/nvdExploitVendor Advisory
- github.com/Yubico/yubikey-val/releases/tag/yubikey-val-2.40nvdRelease NotesThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/03/msg00014.htmlnvd
News mentions
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