Unrated severityNVD Advisory· Published Oct 1, 2025· Updated Oct 1, 2025
ExtremeGuest Essentials Captive Portal Unauthenticated Brute Force
CVE-2025-8679
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Range: <25.5.0
- Extreme Networks/ExtremeGuest Essentialsv5Range: 25.4.0
Patches
Vulnerability mechanics
References
1News mentions
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