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CVE-2025-8679

7.6 high SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.6 · extremenetworksNVD modified 2026-10-12 15:10

Affected (CPE criteria) 1

  • cpe:2.3:a:extremenetworks:extremeguest_essentials:*:*:*:*:*:*:*:*

References 1