{"id":"CVE-2026-84832","title":"Unsafe deserialization in the REST interface","summary":"SEPPmail Secure Email Gateway before 15.0.6 deserializes attacker-controlled data in a privileged REST import workflow without adequate validation. An attacker with a privileged API token can execute arbitrary commands with \"nobody\" priv…","severity":"high","cvss":8.6,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","cvssSource":"cna","cwe":["CWE-502","CWE-78"],"vendor":"SEPPmail AG","product":"SEPPmail Secure Email Gateway (SEG)","affected":["seppmail_secure_email_gateway_seg < 15.0.6"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-03T12:32:58.941461Z"},"published":"2026-09-03","updated":"2026-10-08","sourceUpdated":"2026-10-08T11:16:22.371Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-84832","references":[{"url":"https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html"}],"tags":["cve.org"],"epss":0.00637,"epssPercentile":0.48895,"ingestedAt":"2026-10-08T11:31:27.692Z","slug":"CVE-2026-84832","body":"## Overview\n\nSEPPmail Secure Email Gateway before 15.0.6 deserializes attacker-controlled data in a privileged REST import workflow without adequate validation. An attacker with a privileged API token can execute arbitrary commands with \"nobody\" privileges.\n\n## Affected\n\n- `seppmail_secure_email_gateway_seg < 15.0.6`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":47,"depthScoreParts":{"impact":47.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}