Mifare Ultralight Ev1 Firmware

1 CVEs product

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CVE-2021-33881 MEDIUM POC This Month

On NXP MIFARE Ultralight and NTAG cards, an attacker can interrupt a write operation (aka conduct a "tear off" attack) over RFID to bypass a Monotonic Counter protection mechanism. Rated medium severity (CVSS 4.2), this vulnerability is no authentication required. Public exploit code available and no vendor patch available.

Authentication Bypass Mifare Ultralight Ev1 Firmware Mifare Ultralight C Firmware Mifare Ultralight Nano Firmware Ntag 210 Firmware +4

NVD

CVSS 3.1

4.2

EPSS

0.4%

CVE-2021-33881

EPSS 0% CVSS 4.2

MEDIUM POC This Month

On NXP MIFARE Ultralight and NTAG cards, an attacker can interrupt a write operation (aka conduct a "tear off" attack) over RFID to bypass a Monotonic Counter protection mechanism. Rated medium severity (CVSS 4.2), this vulnerability is no authentication required. Public exploit code available and no vendor patch available.

Authentication Bypass Mifare Ultralight Ev1 Firmware Mifare Ultralight C Firmware +6

NVD

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