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TI-2020-11792 Aliases CVE-2020-15000GHSA-cg49-hhrx-hw69

A PIN management problem was discovered on Yubico YubiKey 5 devices 5.2.0 to 5.2.6.

Priority LOW 28Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.00703 53rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:yubico:yubikey_5_nfc_firmware:*:*:*:*:*:*:*:*5.2.0 – 5.2.6VulnerableYubico
cpe:2.3:h:yubico:yubikey_5_nfc:-:*:*:*:*:*:*:*not specified by NVDRunning onYubico
  • cpe:2.3:o:yubico:yubikey_5_nfc_firmware:*:*:*:*:*:*:*:* Versions 5.2.0 – 5.2.6 Vulnerable ·Yubico
  • cpe:2.3:h:yubico:yubikey_5_nfc:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Yubico

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-15000
  2. 2026-10-03 Alias added: GHSA-cg49-hhrx-hw69

References

Advisory 1

  • TI-2020-11793 An information leak was discovered on Yubico YubiKey 5 NFC devices 5.0.0 to 5.2.6 and… CVSS 3.1MEDIUM 5.3
  • TI-2024-30675 Yubico YubiKey 5 Series devices with firmware before 5.7.0 and YubiHSM 2 devices with… CVSS 3.1MEDIUM 4.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences