CVE-2026-12254CWE-613

CVE-2026-12254

published October 19, 2026

CVSS
6.4
EPSS
0%
Percentile
14.2
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS
6.4 · NONE
CVSS v4.0
6.4 · 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
EPSS
0.00239 · 14.2th percentile
Weakness
CWE-613 · Insufficient Session Expiration
Published
2026-10-19T20:17Z
References (1)
EPSS history
Timeline
  • 21 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 19 OCT 15:37Z
    Netskope Client Captive Portal WebView Persistence allowing SWG bypass issue
    cvelistv5
  • 19 OCT 15:37Z
    Netskope Client Captive Portal WebView Persistence allowing SWG bypass issue
    cvelistv5