{"id":"CVE-2025-15641","state":"PUBLISHED","title":"Netskope Client Exposed IOCTL with Insufficient Access Controls","description":"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","publishedAt":"2026-06-17T01:31:51.228Z","updatedAt":"2026-06-17T14:57:22.093Z","severity":{"score":6.8,"label":"Medium","version":"4.0","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","source":"Netskope"},"assigner":"Netskope","products":["Netskope Netskope Client"],"affected":[{"vendor":"Netskope","product":"Netskope Client","defaultStatus":"affected","versions":[{"version":"0","status":"affected","lessThan":"138","versionType":"custom"}],"platforms":["Windows"]}],"references":["https://www.netskope.com/resources/netskope-resources/netskope-security-advisory-nskpsa-2025-007"],"weaknesses":["CWE-782"],"ingestedAt":"2026-10-29T20:08:31.050Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/15xxx/CVE-2025-15641.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-15641","state":"PUBLISHED","datePublished":"2026-06-17T01:31:51.228Z","dateUpdated":"2026-06-17T14:57:22.093Z","assignerShortName":"Netskope","assignerOrgId":"bf992f6a-e49d-4e94-9479-c4cff32c62bc","dateReserved":"2026-04-22T15:49:43.557Z"},"containers":{"cna":{"title":"Netskope Client Exposed IOCTL with Insufficient Access Controls","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"}],"affected":[{"vendor":"Netskope","product":"Netskope Client","defaultStatus":"affected","versions":[{"version":"0","status":"affected","lessThan":"138","versionType":"custom"}],"platforms":["Windows"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-782","lang":"en","description":"CWE-782 Exposed IOCTL with insufficient access control","type":"CWE"}]}],"providerMetadata":{"shortName":"Netskope","orgId":"bf992f6a-e49d-4e94-9479-c4cff32c62bc","dateUpdated":"2026-06-17T01:50:01.108Z"},"impacts":[{"capecId":"CAPEC-176","descriptions":[{"lang":"en","value":"CAPEC-176 Configuration/Environment Manipulation"}]}],"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:<br><ul><li>R138 and above</li><li>R135 (135.1.19.2670 and above )</li><li>R132 (132.0.27.2671 and above )</li></ul>"}]}],"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":{"timestamp":"2026-06-17T14:57:15.545870Z","id":"CVE-2025-15641","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-17T14:57:22.093Z"}}]}}}