{"cve":"CVE-2021-3011","nvd":{"published":"2021-01-07T16:15:12.120","modified":"2026-06-17T04:04:33.520","status":"Modified","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).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","score":4.2},"cwes":["CWE-670"],"references":["https://ninjalab.io/a-side-journey-to-titan/","https://ninjalab.io/wp-content/uploads/2021/01/a_side_journey_to_titan.pdf","https://ninjalab.io/a-side-journey-to-titan/","https://ninjalab.io/wp-content/uploads/2021/01/a_side_journey_to_titan.pdf"],"products":["ftsafe:k13","ftsafe:k21","ftsafe:k40","ftsafe:k9","google:titan_security_key","nxp:3a081","nxp:a7005a","nxp:j2a081","nxp:j2d081_m59","nxp:j2d081_m61","nxp:j2d082_m60","nxp:j2d120_m60","nxp:j2d145_m59","nxp:j2e081_m64","nxp:j2e082_m65","nxp:j2e120_m65","nxp:j2e145_m64","nxp:j3a041","nxp:j3d081_m59","nxp:j3d081_m59_df","nxp:j3d081_m61","nxp:j3d081_m61_df","nxp:j3d082_m60","nxp:j3d120_m60","nxp:j3d145_m59","nxp:j3e016_m64","nxp:j3e016_m64_df","nxp:j3e016_m66","nxp:j3e016_m66_df","nxp:j3e041_m64","nxp:j3e041_m64_df","nxp:j3e041_m66","nxp:j3e041_m66_df","nxp:j3e081_m64","nxp:j3e081_m64_df","nxp:j3e081_m66","nxp:j3e081_m66_df","nxp:j3e082_m65","nxp:j3e120_m65","nxp:j3e145_m64","nxp:p5010","nxp:p5020","nxp:p5021","nxp:p5040","yubico:yubikey_neo"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2021-3011","score":0.002,"percentile":0.09834,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}