{"action":"Upgrade fetchmail to 6.4.16-4 or later.","affected":[{"fixed":"6.4.16-4","introduced":"0"}],"component":"fetchmail","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.4.16-4"],"id":"tcs_01M5NFTEQGZAM3Q1PJ01VVJDHD","modified_at":"2026-10-23T18:03:16.162010890Z","published_at":"2021-07-30T14:15:18.140Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-36386","https://security-tracker.debian.org/tracker/CVE-2021-36386"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-36386","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-36386"}],"summary":"report_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf va_list argument, which might allow mail servers to cause a denial of service or possibly have unsp"}