CVE-2026-15710

Netskope Client Endpoint DLP Kernel Driver Information Leakage

Published Sep 11, 2026 CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed
Description
An information leakage vulnerability exists in the Endpoint DLP component (epdlpdrv.sys) of Netskope Client for Windows prior to version R141. An internal communication channel used by the user-space hook DLL to pass messages through the kernel driver to the daemon lacked proper token-based message validation, allowing local unprivileged processes to send unauthorized queries. Additionally, a reply buffer used by the port message handler was not properly initialized before returning data, leaking residual kernel pool memory from prior allocations. A local unprivileged attacker could exploit this vulnerability to enumerate DLP configuration and feature flags, extract live session tokens, and read kernel memory fragments from other users' operations.

Remediation

Vendor Solution

Upgrade Netskope Client for Windows to version R141 or later. Alternatively, apply backported maintenance patch builds R132.0.4.7307, R135.0.2.7298, or R138.0.0.7305 or above

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Netskope
Netskope endpoint Dlp
Vendors & Products Netskope
Netskope endpoint Dlp
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description An information leakage vulnerability exists in the Endpoint DLP component (epdlpdrv.sys) of Netskope Client for Windows prior to version R141. An internal communication channel used by the user-space hook DLL to pass messages through the kernel driver to the daemon lacked proper token-based message validation, allowing local unprivileged processes to send unauthorized queries. Additionally, a reply buffer used by the port message handler was not properly initialized before returning data, leaking residual kernel pool memory from prior allocations. A local unprivileged attacker could exploit this vulnerability to enumerate DLP configuration and feature flags, extract live session tokens, and read kernel memory fragments from other users' operations.
Title Netskope Client Endpoint DLP Kernel Driver Information Leakage
Weaknesses CWE-908
References
Metrics cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Netskope
Published
Updated
Sep 11, 2026, 2:57 PM
Reserved
Jul 14, 2026, 9:39 AM
Status
Awaiting Analysis
Published
Sep 11, 2026, 2:17 PM
Modified
Sep 18, 2026, 7:31 PM