When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which leaked partial information about the nonce used during signature generation. Given an electro-magnetic trace of a few signature generations, the private key could have been computed. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

Related CVEs

CVE-2020-6829

Key Information

GHSA ID

GHSA-cc99-55qg-f87r

Published

May 24, 2022 5:32 PM

Last Modified

February 20, 2023 6:30 PM

CVSS Score

5.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: September 11, 2025 6:35 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.