Vulnerability Report

CVE-2020-15001

Title: Yubico Yubikey 5 Nfc Broken Access Control

Other

Proof Of Concept

No public PoC currently indexed for CVE-2020-15001.

CWE Category CWE-862
Published Date Jul 09, 2020
Modified Date Jun 17, 2026
Exploit Status Not Found
Score 5.3 CVSS v3.1
Exploit Probability (EPSS)
0.55%

Vulnerability Summary

CVE-2020-15001: An information leak was discovered on Yubico YubiKey 5 NFC devices 5.0.0 to 5.2.6 and 5.3.0 to 5.3.1. The OTP application allows a user to set optional access codes on OTP slots. This access code is intended to prevent unauthorized changes to OTP configurations. The access code is not checked when updating NFC specific components of the OTP configurations. This may allow an attacker to access configured OTPs and passwords stored in slots that were not configured by the user to be read over NFC, despite a user having set an access code. (Users who have not set an access code, or who have not configured the OTP slots, are not impacted by this issue.)

Impacted Vendors

Y
yubico 1

Reference Links

https://www.yubico.com/support/security-advisories/ysa-2020-04/ https://www.yubico.com/support/security-advisories/ysa-2020-04/
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.3
Attack Vector
ADJACENT_NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v2.0
Source Entity [email protected]
Severity LOW
2.9
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:A/AC:M/Au:N/C:P/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-15001 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector ADJACENT_NETWORK
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Stack

No specific products linked.