SeppMail is a technology platform tracked across 1 threat cluster and 2 intelligence report mentions on ThreatCluster. First observed June 7, 2026; most recent activity June 8, 2026.
CVE-2026-2743 is a critical vulnerability with a CVSS score of 9.8, affecting SeppMail versions 15.0.2.1 and earlier. The vulnerability allows arbitrary file write via path traversal, leading to potential remote code…