CVE-2021-3011

MEDIUM

NXP SmartMX/P5x/A7x - Info Disclosure

Title source: llm
STIX 2.1

Description

An electromagnetic-wave side-channel issue was discovered on NXP SmartMX / P5x security microcontrollers and A7x secure authentication microcontrollers, with CryptoLib through v2.9. It allows attackers to extract the ECDSA private key after extensive physical access (and consequently produce a clone). This was demonstrated on the Google Titan Security Key, based on an NXP A7005a chip. Other FIDO U2F security keys are also impacted (Yubico YubiKey Neo and Feitian K9, K13, K21, and K40) as well as several NXP JavaCard smartcards (J3A081, J2A081, J3A041, J3D145_M59, J2D145_M59, J3D120_M60, J3D082_M60, J2D120_M60, J2D082_M60, J3D081_M59, J2D081_M59, J3D081_M61, J2D081_M61, J3D081_M59_DF, J3D081_M61_DF, J3E081_M64, J3E081_M66, J2E081_M64, J3E041_M66, J3E016_M66, J3E016_M64, J3E041_M64, J3E145_M64, J3E120_M65, J3E082_M65, J2E145_M64, J2E120_M65, J2E082_M65, J3E081_M64_DF, J3E081_M66_DF, J3E041_M66_DF, J3E016_M66_DF, J3E041_M64_DF, and J3E016_M64_DF).

Scores

CVSS v3 4.2
EPSS 0.0006
EPSS Percentile 17.3%
Attack Vector PHYSICAL
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-670
Status published
Products (45)
ftsafe/k13
ftsafe/k21
ftsafe/k40
ftsafe/k9
google/titan_security_key
nxp/3a081
nxp/a7005a
nxp/j2a081
nxp/j2d081_m59
nxp/j2d081_m61
... and 35 more
Published Jan 07, 2021
Tracked Since Feb 18, 2026