CVE-2019-18222

—

CVSS 3.1

4.7 medium

EPSS

<1%p27

Published

Jan 23, 2020 (Jan 23, 2020)

Modified

Jun 17, 2026

Description

The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks.

Vendors: arm fedoraproject debian
Products: mbed crypto, mbed tls, fedora, debian linux
Weakness: CWE-203
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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