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Vulnerability Details :

CVE-2025-15641

Summary
Assigner-Netskope
Assigner Org ID-bf992f6a-e49d-4e94-9479-c4cff32c62bc
Published At-17 Jun, 2026 | 01:31
Updated At-17 Jun, 2026 | 14:57
Rejected At-
Credits

Netskope Client Exposed IOCTL with Insufficient Access Controls

Netskope was notified about a potential gap in its Netskope Client for Windows systems where a malicious insider with administrative privileges can potentially tamper with the customer IOCTL by sending crafted IOCTL requests to the driver. A successful exploit can result in the bypassing of all anti-tampering protections for the NSClient.Affected Product(s) and Version(s) * Product Name: Netskope Client * Affected Platform: Windows * Affected Version: All version below R138

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:Netskope
Assigner Org ID:bf992f6a-e49d-4e94-9479-c4cff32c62bc
Published At:17 Jun, 2026 | 01:31
Updated At:17 Jun, 2026 | 14:57
Rejected At:
▼CVE Numbering Authority (CNA)
Netskope Client Exposed IOCTL with Insufficient Access Controls

Netskope was notified about a potential gap in its Netskope Client for Windows systems where a malicious insider with administrative privileges can potentially tamper with the customer IOCTL by sending crafted IOCTL requests to the driver. A successful exploit can result in the bypassing of all anti-tampering protections for the NSClient.Affected Product(s) and Version(s) * Product Name: Netskope Client * Affected Platform: Windows * Affected Version: All version below R138

Affected Products
Vendor
Netskope
Product
Netskope Client
Platforms
  • Windows
Default Status
affected
Versions
Affected
  • From 0 before 138 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-782CWE-782 Exposed IOCTL with insufficient access control
Type: CWE
CWE ID: CWE-782
Description: CWE-782 Exposed IOCTL with insufficient access control
Metrics
VersionBase scoreBase severityVector
4.06.8MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Version: 4.0
Base score: 6.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-176CAPEC-176 Configuration/Environment Manipulation
CAPEC ID: CAPEC-176
Description: CAPEC-176 Configuration/Environment Manipulation
Solutions

Use any of the below version of Netskope Client: * R138 and above * R135 (135.1.19.2670 and above ) * R132 (132.0.27.2671 and above )

Configurations
Workarounds

No workaround available

Exploits

Netskope is not aware of any active exploitation of the security issue.

Credits
finder
Netskope credits Juan Pablo Barriga for reporting this flaw.
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.netskope.com/resources/netskope-resources/netskope-security-advisory-nskpsa-2025-007
N/A
Hyperlink: https://www.netskope.com/resources/netskope-resources/netskope-security-advisory-nskpsa-2025-007
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:psirt@netskope.com
Published At:17 Jun, 2026 | 13:19
Updated At:17 Jun, 2026 | 16:18

Netskope was notified about a potential gap in its Netskope Client for Windows systems where a malicious insider with administrative privileges can potentially tamper with the customer IOCTL by sending crafted IOCTL requests to the driver. A successful exploit can result in the bypassing of all anti-tampering protections for the NSClient.Affected Product(s) and Version(s) * Product Name: Netskope Client * Affected Platform: Windows * Affected Version: All version below R138

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.06.8MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
N/A
Type: Secondary
Version: 4.0
Base score: 6.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: N/A
Version:
Base score:
Base severity: N/A
Vector:
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-782Secondarypsirt@netskope.com
CWE ID: CWE-782
Type: Secondary
Source: psirt@netskope.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://www.netskope.com/resources/netskope-resources/netskope-security-advisory-nskpsa-2025-007psirt@netskope.com
N/A
Hyperlink: https://www.netskope.com/resources/netskope-resources/netskope-security-advisory-nskpsa-2025-007
Source: psirt@netskope.com
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

1Records found
CVE-2025-15642
Matching Score-8
Assigner-Netskope
ShareView Details
Matching Score-8
Assigner-Netskope
CVSS Score-6.8||MEDIUM
EPSS-0.14% / 4.09%
||
7 Day CHG~0.00%
Published-17 Jun, 2026 | 01:48
Updated-17 Jun, 2026 | 16:18
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Netskope Client Service Insufficient Access Controls

Netskope is notified about a potential gap in its Netskoped Client for Windows systems where a malicious insider with admin privileges can lead to bypassing the NSClient Tamper Protections due to weak Discretionary Access Control List (DACLs) on the service object and related registry keys,. * Product Name: Netskope Client * Affected Platform: Windows * Affected Version: All version below R138

Action-Not Available
Vendor-Netskope
Product-Netskope Client
CWE ID-CWE-276
Incorrect Default Permissions
Details not found