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                                              Netskope Security Advisory

                                              NSKPSA-2025-005

                                              Endpoint DLP Driver Improper Service Loading Vulnerability

                                              Netskope was notified of a vulnerability within its Netskope Client Endpoint DLP driver (epdlpdrv.sys) on Windows systems. The vulnerability potentially allows a local, authenticated user with administrator privileges to improperly load the driver as a generic kernel service, which triggers a null-pointer dereference and causes a system crash (Blue-Screen-of-Death). A successful exploit may result in a denial-of-service for the affected machine.

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                                              Security Advisory ID: NSKPSA-2025-005
                                              Severity Rating: Medium
                                              First Communicated: November 25, 2025
                                              Overall CVSS Score: 5.9
                                              Version: 1.0
                                              CVE-ID:‬‭ CVE-2025-11156

                                               

                                              Description
                                              Netskope was notified of a vulnerability within its Netskope Client Endpoint DLP driver (epdlpdrv.sys) on Windows systems. The vulnerability potentially allows a local, authenticated user with administrator privileges to improperly load the driver as a generic kernel service, which triggers a null-pointer dereference and causes a system crash (Blue-Screen-of-Death). A successful exploit may result in a denial-of-service for the affected machine.

                                               

                                              Affected Product(s) and Version(s)
                                              Product Name: Netskope Client + Endpoint DLP
                                              Affected Platform: Windows
                                              Affected Versions: All versions below R132

                                               

                                              CVE-ID(s)
                                              CVE-2025-11156

                                               

                                              Remediation
                                              Netskope has patched the issue and released a new version R132. Customers are recommended to update the Netskope Client version on end-user machines to R132 or above. Customers utilizing the Fail-Safe feature must update to R132.0.7 or later (refer to Netskope Service Client Fail-Close Failure for details).

                                               

                                              Netskope download Instructions – Download Netskope Client and Scripts – Netskope Support

                                               

                                              Workaround
                                              Customers can block any process attempting to create a kernel service pointing to epdlpdrv.sys.

                                               

                                              General Security Best Practices
                                              Netskope recommends using security hardening options available in the product and configuring them to harden the security of a Netskope tenant- https://support.netskope.com/s/article/Secure-Tenant-Configuration

                                               

                                              Special Notes and Acknowledgement
                                              Netskope credits Ahmad Abdillah bin Zaini at Cybersecurity Agency of Singapore for reporting this flaw.

                                               

                                              Exploitation and Public Disclosures
                                              Netskope is not aware of any active exploitation of the security issue.

                                               

                                              Revision History

                                              VersionDateSectionNotes
                                              1.0Nov 25, 2025Initial Release

                                               

                                              Legal Disclaimer
                                              To the maximum extent permitted by applicable law, information provided in this notice is provided “as is” without warranty of any kind. Your use of the information in this notice or materials linked herein are at your own risk. This notice and all aspects of Netskope’s Product Security Incident Response Policy are subject to change without notice. Response is not guaranteed for any specific issue or class of issues. Your entitlements regarding warranties, support and maintenance, including vulnerabilities in any Netskope software or service, are governed solely by the applicable master agreement between Netskope and you. The statements in this notice do not modify, enlarge or otherwise amend any of your rights under the applicable master agreement, or create any additional warranties or commitments.

                                               

                                              About Netskope
                                              Netskope, a leader in modern security and networking, addresses the needs of both security and networking teams by providing optimized access and real-time, context-based security for people, devices, and data anywhere they go. Thousands of customers, including more than 30 of the Fortune 100, trust the Netskope One platform, its Zero Trust Engine, and its powerful NewEdge network to reduce risk and gain full visibility and control over cloud, AI, SaaS, web, and private applications—providing security and accelerating performance without trade-offs.