{"action":"Upgrade firefox-esr to 45.4.0esr-1 or later.","affected":[{"fixed":"45.4.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["45.4.0esr-1"],"id":"tcs_01M5NBMX4Y8SSHE173TE06JBAH","modified_at":"2026-09-22T07:02:08.902187807Z","published_at":"2016-09-22T22:59:18.973Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2016-5284","https://security-tracker.debian.org/tracker/CVE-2016-5284"],"severity":{"label":"high","score":7.4},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2016-5284#Debian:14/firefox-esr","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2016-5284"}],"summary":"Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4, and Thunderbird < 45.4 rely on unintended expiration dates for Preloaded Public Key Pinning, which allows man-in-the-middle attackers to spoo"}