CVE-2026-18077

CVE-2026-18077 affects IBM i versions 7.3–7.6 and is described as a remote denial-of-service caused by a stack-based buffer overflow in SMTP handling. The CVSS v3.1 base score is 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). IBM’s bulletin lists fixes per release: 7.6 — SJ11061 and SJ11131; 7.5 — SJ...