{"action":"Upgrade nss to 2:3.53-1 or later.","affected":[{"fixed":"2:3.53-1","introduced":"0"}],"component":"nss","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["2:3.53-1"],"id":"tcs_01M5NEHDSFJ4RVGQ1Y6MC2QT7S","modified_at":"2026-10-26T12:00:28.419564817Z","published_at":"2020-07-09T15:15:10.757Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-12399","https://security-tracker.debian.org/tracker/CVE-2020-12399"],"severity":{"label":"medium","score":4.4},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-12399#Debian:13/nss","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-12399"}],"summary":"NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefo"}