Vulnerability in Nordicsemi Nrf52840
CVE-2021-29415
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (17.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 17.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.sit.fraunhofer.de/en/news-events/downloads-services/cve/ (Not Applicable)
- eprint.iacr.org/2021/640 (Third Party Advisory)
- www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-an… (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-29415?
- CVE-2021-29415 is a medium-severity vulnerability in Nordicsemi Nrf52840, classified under Observable Discrepancy. CVSS score: 5.5/10. Published 2021-05-21.
- How severe is CVE-2021-29415?
- Medium severity. CVSS v3 base score is 5.5 out of 10.