Extreme Networks Extremeguest Essentials vulnerabilities

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Published CVEs affecting Extreme Networks Extremeguest Essentials: 1 record(s), with affected versions and fixes.
cpe:2.3:a:extremenetworks:extremeguest_essentials

CVE-2025-8679 Critical · 9.8 CWE-307 Oct 1, 2025

ExtremeGuest Essentials Captive Portal Unauthenticated Brute Force

In ExtremeGuest Essentials before 25.5.0, captive-portal may permit unauthorized access via manual brute-force procedure. Under certain ExtremeGuest Essentials captive-portal SSID configurations, repeated manual login attempts may allow an unauthenticated device to be marked as authenticated and obtain network access. Client360 logs may display the client MAC as the username despite no MAC-authentication being enabled.