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
History

Wed, 21 Oct 2026 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Netskope
Netskope netskope Client
Vendors & Products Netskope
Netskope netskope Client

Mon, 19 Oct 2026 15:45:00 +0000

Type Values Removed Values Added
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
Title Netskope Client Captive Portal WebView Persistence allowing SWG bypass issue
Weaknesses CWE-613
References
Metrics cvssV4_0

{'score': 6.4, '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Netskope

Published: 2026-10-19T15:37:11.423Z

Updated: 2026-10-21T16:31:04.871Z

Reserved: 2026-06-15T08:38:15.229Z

Link: CVE-2026-12254

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-19T16:17:07.807

Modified: 2026-10-20T20:17:20.053

Link: CVE-2026-12254

cve-icon Redhat

No data.