{"action":"Upgrade strongswan to 5.9.4-1 or later.","affected":[{"fixed":"5.9.4-1","introduced":"0"}],"component":"strongswan","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["5.9.4-1"],"id":"tcs_01M5NG0KQ3TCMW63EVF9J3MCW5","modified_at":"2026-10-23T18:04:15.818231069Z","published_at":"2021-10-18T14:15:10.333Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-41991","https://security-tracker.debian.org/tracker/CVE-2021-41991"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-41991","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-41991"}],"summary":"The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to fill the cache and later trigger the replacement of"}