CVE-2026-102108

Kiteworks Email Protection Gateway deserialization of untrusted data

HIGH
7.2
CVSS Score
Published: September 30, 2026 at 08:24 PM UTC
Updated: October 8, 2026 at 01:43 PM UTC
2 products affected across 2 vendorsKiteworksEmail Protection Gateway

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Severity
HIGH7.2
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

An authenticated administrator of Kiteworks Email Protection Gateway could submit a crafted serialized object to a cluster management interface that was deserialized without sufficient validation, potentially allowing arbitrary code execution in the context of the gateway service account. Exploitation requires an administrator account holding a specific queue-management privilege.

Affected

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

0 ≤ v < 9.5.00
Vendor states this is fixed in 9.5.0 (unaffected)

Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

7.2HIGHcisa-cg
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-502

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