CVE-2026-84832

HighCVSS 8.6/10Last modified Sep 4, 2026

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.

Metrics

CVSS 4.0 8.6/10

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:X/V:X/RE:X/U:X

Weakness enumeration

CWE-78 CWE-502

Affected software

Vendor	Product	Versions
SEPPmail AG	SEPPmail Secure Email Gateway (SEG)	< 15.0.6

References

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

Timeline

Published: Sep 3, 2026
Last modified: Sep 4, 2026
NVD status: Deferred

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