CVE Catalog

CVE-2026-12254

MediumCVSS 6.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.24%

14th percentile - higher than 14% of all known CVEs

Summary

A gap in the Netskope Client (NSClient) allows a system connecting to a Captive Portal access point to switch to a network with internet connectivity without closing the Captive Portal. This enables abuse via a rogue access point to access malicious sites or exfiltrate data.

Risk Assessment

An attacker could use a rogue access point to redirect users to malicious sites or exfiltrate data, posing a security risk to the organization.

Recommendation

Upgrade Netskope Client to version R142 or later, which addresses this issue.

Related vulnerabilities

Original NVD description (English source)

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

Vulnerability data from NVD (NIST) · CISA KEV · EPSS