AUGUST 4, 2026
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Case File

CVE-2021-29415

MEDIUM · CVSS 5.5 EPSS 0.27%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-05-21 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2021-29415
Severity
MEDIUM
CVSS
5.5
EPSS
0.27%
F5

Original NVD Description

The elliptic curve cryptography (ECC) hardware accelerator, part of the ARM® TrustZone® CryptoCell 310, contained in the NordicSemiconductor nRF52840 through 2021-03-29 has a non-constant time ECDSA implemenation. This allows an adversary to recover the private ECC key used during an ECDSA operation.