CVE-2025-15641 (GCVE-0-2025-15641)
Vulnerability from cvelistv5 – Published: 2026-06-17 01:31 – Updated: 2026-06-17 14:57
VLAI
Title
Netskope Client Exposed IOCTL with Insufficient Access Controls
Summary
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
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-782 - Exposed IOCTL with insufficient access control
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Netskope | Netskope Client |
Affected:
0 , < 138
(custom)
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-15641",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-17T14:57:15.545870Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-17T14:57:22.093Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "affected",
"platforms": [
"Windows"
],
"product": "Netskope Client",
"vendor": "Netskope",
"versions": [
{
"lessThan": "138",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Netskope credits Juan Pablo Barriga for reporting this flaw."
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "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.\u003cdiv\u003eAffected Product(s) and Version(s)\u003cbr\u003e\u003cul\u003e\u003cli\u003eProduct Name: Netskope Client\u003c/li\u003e\u003cli\u003eAffected Platform: Windows\u003c/li\u003e\u003cli\u003eAffected Version: All version below R138\u003c/li\u003e\u003c/ul\u003e\u003c/div\u003e"
}
],
"value": "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)\n * Product Name: Netskope Client\n * Affected Platform: Windows\n * Affected Version: All version below R138"
}
],
"exploits": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Netskope is not aware of any active exploitation of the security issue."
}
],
"value": "Netskope is not aware of any active exploitation of the security issue."
}
],
"impacts": [
{
"capecId": "CAPEC-176",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-176 Configuration/Environment Manipulation"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "LOCAL",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "HIGH",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "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",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-782",
"description": "CWE-782 Exposed IOCTL with insufficient access control",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-17T01:50:01.108Z",
"orgId": "bf992f6a-e49d-4e94-9479-c4cff32c62bc",
"shortName": "Netskope"
},
"references": [
{
"url": "https://www.netskope.com/resources/netskope-resources/netskope-security-advisory-nskpsa-2025-007"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Use any of the below version of Netskope Client:\u003cbr\u003e\u003cul\u003e\u003cli\u003eR138 and above\u003c/li\u003e\u003cli\u003eR135 (135.1.19.2670 and above )\u003c/li\u003e\u003cli\u003eR132 (132.0.27.2671 and above )\u003c/li\u003e\u003c/ul\u003e"
}
],
"value": "Use any of the below version of Netskope Client:\n * R138 and above\n * R135 (135.1.19.2670 and above )\n * R132 (132.0.27.2671 and above )"
}
],
"source": {
"advisory": "NSKPSA-2025-007",
"discovery": "EXTERNAL"
},
"title": "Netskope Client Exposed IOCTL with Insufficient Access Controls",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "No workaround available"
}
],
"value": "No workaround available"
}
],
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "bf992f6a-e49d-4e94-9479-c4cff32c62bc",
"assignerShortName": "Netskope",
"cveId": "CVE-2025-15641",
"datePublished": "2026-06-17T01:31:51.228Z",
"dateReserved": "2026-04-22T15:49:43.557Z",
"dateUpdated": "2026-06-17T14:57:22.093Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-15641",
"date": "2026-06-17",
"epss": "0.00163",
"percentile": "0.05802"
},
"vulnrichment": {
"containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"bf992f6a-e49d-4e94-9479-c4cff32c62bc\", \"shortName\": \"Netskope\", \"dateUpdated\": \"2026-06-17T01:50:01.108Z\"}, \"title\": \"Netskope Client Exposed IOCTL with Insufficient Access Controls\", \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"cweId\": \"CWE-782\", \"description\": \"CWE-782 Exposed IOCTL with insufficient access control\", \"type\": \"CWE\"}]}], \"impacts\": [{\"capecId\": \"CAPEC-176\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-176 Configuration/Environment Manipulation\"}]}], \"affected\": [{\"vendor\": \"Netskope\", \"product\": \"Netskope Client\", \"platforms\": [\"Windows\"], \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"138\", \"versionType\": \"custom\"}], \"defaultStatus\": \"affected\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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)\\n * Product Name: Netskope Client\\n * Affected Platform: Windows\\n * Affected Version: All version below R138\", \"supportingMedia\": [{\"type\": \"text/html\", \"base64\": false, \"value\": \"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.\u003cdiv\u003eAffected Product(s) and Version(s)\u003cbr\u003e\u003cul\u003e\u003cli\u003eProduct Name: Netskope Client\u003c/li\u003e\u003cli\u003eAffected Platform: Windows\u003c/li\u003e\u003cli\u003eAffected Version: All version below R138\u003c/li\u003e\u003c/ul\u003e\u003c/div\u003e\"}]}], \"references\": [{\"url\": \"https://www.netskope.com/resources/netskope-resources/netskope-security-advisory-nskpsa-2025-007\"}], \"metrics\": [{\"format\": \"CVSS\", \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}], \"cvssV4_0\": {\"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"HIGH\", \"userInteraction\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subIntegrityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"exploitMaturity\": \"NOT_DEFINED\", \"Safety\": \"NOT_DEFINED\", \"Automatable\": \"NOT_DEFINED\", \"Recovery\": \"NOT_DEFINED\", \"valueDensity\": \"NOT_DEFINED\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"version\": \"4.0\", \"baseSeverity\": \"MEDIUM\", \"baseScore\": 6.8, \"vectorString\": \"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\"}}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"No workaround available\", \"supportingMedia\": [{\"type\": \"text/html\", \"base64\": false, \"value\": \"No workaround available\"}]}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Use any of the below version of Netskope Client:\\n * R138 and above\\n * R135 (135.1.19.2670 and above )\\n * R132 (132.0.27.2671 and above )\", \"supportingMedia\": [{\"type\": \"text/html\", \"base64\": false, \"value\": \"Use any of the below version of Netskope Client:\u003cbr\u003e\u003cul\u003e\u003cli\u003eR138 and above\u003c/li\u003e\u003cli\u003eR135 (135.1.19.2670 and above )\u003c/li\u003e\u003cli\u003eR132 (132.0.27.2671 and above )\u003c/li\u003e\u003c/ul\u003e\"}]}], \"exploits\": [{\"lang\": \"en\", \"value\": \"Netskope is not aware of any active exploitation of the security issue.\", \"supportingMedia\": [{\"type\": \"text/html\", \"base64\": false, \"value\": \"Netskope is not aware of any active exploitation of the security issue.\"}]}], \"credits\": [{\"lang\": \"en\", \"value\": \"Netskope credits Juan Pablo Barriga for reporting this flaw.\", \"type\": \"finder\"}], \"source\": {\"advisory\": \"NSKPSA-2025-007\", \"discovery\": \"EXTERNAL\"}, \"x_generator\": {\"engine\": \"Vulnogram 1.0.2\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-15641\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-17T14:57:15.545870Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-17T14:57:18.624Z\"}}]}",
"cveMetadata": "{\"cveId\": \"CVE-2025-15641\", \"assignerOrgId\": \"bf992f6a-e49d-4e94-9479-c4cff32c62bc\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Netskope\", \"dateReserved\": \"2026-04-22T15:49:43.557Z\", \"datePublished\": \"2026-06-17T01:31:51.228Z\", \"dateUpdated\": \"2026-06-17T14:57:22.093Z\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…