This security bulletin contains one low risk vulnerability.
Exploit availability: NoDescription
The vulnerability allows a local attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to the access code is not checked when updating NFC-specific components of the OTP configurations. An attacker with physical can bypass implemented security restrictions and perform possible changes to the NDEF prefix as well as which slot is presented over NFC without an access code check.
Note: This vulnerability affects the following versions of YubiKey 5 NFC:
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.Vulnerable software versions
YubiKey 5 NFC: 5.3.0 - 5.3.1
Can this vulnerability be exploited remotely?
No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.