CVE-2025-11156: Improper Service Loading Vulnerability in Netskope Endpoint DLP Driver

Severity: medium (CVSS 5.9 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-11-28 · updated 2026-10-08
Weakness: CWE-476

Description

Netskope was notified about a potential gap in its agent (NS Client) on Windows systems. If this gap is successfully exploited, a local, authenticated user with Administrator privileges can improperly load the driver as a generic kernel service. This triggers the flaw, causing a system crash (Blue-Screen-of-Death) and resulting in a Denial of Service (DoS) for the affected machine.

Affected products

Netskope Client: before R132 — fixed in R132

How to fix

Upgrade to a fixed version: Netskope Client R132. Check the vendor advisory for mitigations.

References

https://www.netskope.com/company/security-compliance-and-assurance/security-advisories-and-disclosures/netskope-security-advisory-nskpsa-2025-005

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