{"id":"CVE-2026-12254","revision":"b95628ac517342c894d0a90ed03d8c91","records":[{"revision":"b95628ac517342c894d0a90ed03d8c91","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-12254","aliases":[],"title":"Netskope Client Captive Portal WebView Persistence allowing SWG bypass issue","description":"Netskope is notified about a potential gap in its agent (NSClient) where a system with Netskope Client while connecting to an access point with Captive Portal switches to a Network which already has internet connectivity, the Captive Portal does not close. This allows the possibility of abuse via the Captive Portal using a rogue access point to either access malicious sites or exfiltrate data.The issue impacts all versions prior to R142","state":0,"publishedAt":"2026-10-19T15:37:11.423+00:00","modifiedAt":"2026-10-21T16:31:04.871+00:00","affected":[{"ecosystem":"Vendor product","name":"Netskope Client","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Netskope Inc.\",\n                    \"product\": \"Netskope Client\",\n                    \"platforms\": [\n                        \"Windows\",\n                        \"MacOS\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"142\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","score":6.4,"severity":"MEDIUM"}],"references":["https://www.netskope.com/resources/netskope-resources/netskope-security-advisory-nskpsa-2026-004"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-12254","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-12254","identifiers":["CVE-2026-12254"]},"retained":false,"historicalAffected":[]}],"coverage":[]}