{"action":"Upgrade exim4 to 4.98.2-1+deb13u2 or later.","affected":[{"fixed":"4.98.2-1+deb13u2","introduced":"0"}],"component":"exim4","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["4.98.2-1+deb13u2"],"id":"tcs_01M5NRY3KHCN6ZSS88ACHTDCG1","modified_at":"2026-10-01T03:03:04.760487957Z","published_at":"2026-04-30T22:16:25.923Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-40687","https://security-tracker.debian.org/tracker/CVE-2026-40687"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-40687#Debian:13/exim4","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-40687"}],"summary":"In Exim before 4.99.2, when the SPA authentication driver is used with an adversarial SPA resource, there can be an out-of-bounds write that crashes the connection instance, or erroneous data processi"}