CVE-2026-84832

Unsafe deserialization in the REST interface

HIGH
8.6
CVSS Score
Published: September 3, 2026 at 08:45 AM UTC
Updated: October 8, 2026 at 11:16 AM UTC
1 product affected across 1 vendorSecure Email Gateway

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Severity
HIGH8.6
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 15.0.6
Affected range stops below 15.0.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.6HIGHNCSC.ch
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-502CWE-78

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