Check Point Advisories

Sitecore Insecure Deserialization (CVE-2025-27218)

Check Point Reference: CPAI-2025-0113
Date Published: 31 Mar 2025
Severity: Medium
Last Updated: Monday 31 March, 2025
Source:
Industry Reference:CVE-2025-27218
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Sitecore Experience Manager 10.4.0 before KB1003424
Sitecore Experience Platform 10.4.0 before KB1003424
Vulnerability Description An insecure deserialization vulnerability exists in Sitecore. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Sitecore Insecure Deserialization (CVE-2025-27218) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Server Enforcement Violation.
Attack Information:  Sitecore Insecure Deserialization (CVE-2025-27218)

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