Is CVE-2020-15000 actively exploited?

No active exploitation of CVE-2020-15000 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-15000 be exploited remotely?

Yes. CVE-2020-15000 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-15000?

CVE-2020-15000 has a CVSS score of 5.9 (MEDIUM).

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MEDIUM

CVE-2020-15000

NVD-CWE-OtherPublished: July 9, 2020· Updated: Jun 17, 2026

5.9

CVSS v3.1

Official Description

A PIN management problem was discovered on Yubico YubiKey 5 devices 5.2.0 to 5.2.6. OpenPGP has three passwords: Admin PIN, Reset Code, and User PIN. The Reset Code is used to reset the User PIN, but it is disabled by default. A flaw in the implementation of OpenPGP sets the Reset Code to a known value upon initialization. If the retry counter for the Reset Code is set to non-zero without changing the Reset Code, this known value can be used to reset the User PIN. To set the retry counters, the Admin PIN is required.

NVD Source

Technical Analysis

CVE-2020-15000 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 5.9.