cve.bz

CVE-2021-29415

5.5 mediumEPSS 0.3%

Medium (5.5) in nordicsemi nrf52840 firmware. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.5 medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-31)
CWE
CWE-203
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON