What’s Vulnerable › Vulnerabilities

CVE-2026-102117: Kiteworks Core Remote Code Execution

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-30 · updated 2026-10-13
• Weakness: CWE-807

Description

On deployments where the remote-support capability is licensed and enabled, an authenticated System Administrator who also possessed the key protecting the submitted data could redirect the underlying system's outbound support connection to a destination of their choosing. That destination could then have operating-system commands executed on the node and receive their output, potentially resulting in remote code execution with the privileges of a local service account.

Affected products

• Kiteworks Email Protection Gateway: before 9.5.1 — fixed in 9.5.1

How to fix

Upgrade to a fixed version: Kiteworks Email Protection Gateway 9.5.1. Check the vendor advisory for mitigations.

References

• https://github.com/kiteworks/security-advisories/security/advisories/GHSA-5rhv-f48q-gq5v
• https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json

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