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Vulnerability record · CVE-2026-84832 · published 3 September 2026

CVE-2026-84832: OS command injection vulnerability

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" privileges.

8.6 CVSS 4.0 High EPSS 0.64% · top 51.5% CWE-78 · OS command injectionCWE-502 · Deserialization of untrusted data Deferred
8.6CVSS 4.0 base score
0.64%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
4 Sep 2026Last modified by NVD

Description

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" privileges.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html

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Source: NIST National Vulnerability Database (record CVE-2026-84832), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.