{"api_version":"1","generated_at":"2026-05-07T16:42:30+00:00","cve":"CVE-2023-4996","urls":{"html":"https://cve.report/CVE-2023-4996","api":"https://cve.report/api/cve/CVE-2023-4996.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-4996","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-4996"},"summary":{"title":"CVE-2023-4996","description":"Netskope was made aware of a security vulnerability in its NSClient product for version 100 & prior where a malicious non-admin user can disable the Netskope client by using a specially-crafted package. The root cause of the problem was a user control code when called by a Windows ServiceController did not validate the permissions associated with the user before executing the user control code. This user control code had permissions to terminate the NSClient service. ","state":"PUBLIC","assigner":"psirt@netskope.com","published_at":"2023-11-06 11:15:00","updated_at":"2023-11-14 17:04:00"},"problem_types":["CWE-281"],"metrics":[],"references":[{"url":"https://www.netskope.com/company/security-compliance-and-assurance/security-advisories-and-disclosures/netskope-security-advisory-nskpsa-2023-003","name":"https://www.netskope.com/company/security-compliance-and-assurance/security-advisories-and-disclosures/netskope-security-advisory-nskpsa-2023-003","refsource":"MISC","tags":[],"title":"NSKPSA-2023-003 - Netskope","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-4996","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4996","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2023","cve_id":"4996","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"4996","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"netskope","cpe5":"netskope","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2023-4996","ASSIGNER":"psirt@netskope.com","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"Netskope was made aware of a security vulnerability in its NSClient product for version 100 & prior where a malicious non-admin user can disable the Netskope client by using a specially-crafted package. The root cause of the problem was a user control code when called by a Windows ServiceController did not validate the permissions associated with the user before executing the user control code. This user control code had permissions to terminate the NSClient service. \n"}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-281 Improper Preservation of Permissions","cweId":"CWE-281"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"Netskope","product":{"product_data":[{"product_name":"Netskope Client","version":{"version_data":[{"version_affected":"=","version_value":"100 & prior"}]}}]}}]}},"references":{"reference_data":[{"url":"https://www.netskope.com/company/security-compliance-and-assurance/security-advisories-and-disclosures/netskope-security-advisory-nskpsa-2023-003","refsource":"MISC","name":"https://www.netskope.com/company/security-compliance-and-assurance/security-advisories-and-disclosures/netskope-security-advisory-nskpsa-2023-003"}]},"generator":{"engine":"Vulnogram 0.1.0-dev"},"source":{"advisory":"NSKPSA-2023-003","discovery":"UNKNOWN"},"exploit":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<span style=\"background-color: rgb(255, 255, 255);\">Netskope is not aware of any public exploitations of the issue till the advisory is published.</span><br>"}],"value":"Netskope is not aware of any public exploitations of the issue till the advisory is published.\n"}],"solution":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<span style=\"background-color: rgb(255, 255, 255);\">Netskope patched the issue and released a new version. The issue was fixed in Release101. Customers are recommended to upgrade their client to the versions R101 or greater. Netskope download Instructions – </span><a target=\"_blank\" rel=\"nofollow\" href=\"https://support.netskope.com/s/article/Download-Netskope-Client-and-Scripts\">Download Netskope Client and Scripts – Netskope Support</a><br>"}],"value":"Netskope patched the issue and released a new version. The issue was fixed in Release101. Customers are recommended to upgrade their client to the versions R101 or greater. Netskope download Instructions –  Download Netskope Client and Scripts – Netskope Support https://support.netskope.com/s/article/Download-Netskope-Client-and-Scripts \n"}],"credits":[{"lang":"en","value":"Netskope credits Alexander Katziv from Novartis for reporting this flaw."}],"impact":{"cvss":[{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6.6,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H","version":"3.1"}]}},"nvd":{"publishedDate":"2023-11-06 11:15:00","lastModifiedDate":"2023-11-14 17:04:00","problem_types":["CWE-281"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:netskope:netskope:*:*:*:*:*:*:*:*","versionEndExcluding":"101","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]}]}},"legacy_mitre":{"record":null,"notes":[]}}}