CVE Watch20 jul 2026

CVE-2026-8169

ExtremeXOS (EXOS) uses a challenge-response mechanism to authorize access to the privileged debug-mode function. The challenge value is gene

CVSS

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Sin CVSS

EPSS

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KEV

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Exploit Today

0-100

Publicado: 20 jul 2026 · Última mod.: 20 jul 2026 · CWE-338

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

ExtremeXOS (EXOS) uses a challenge-response mechanism to authorize access to the privileged debug-mode function. The challenge value is generated using an insufficiently random source, which under certain conditions may allow an attacker to predict the expected response and activate debug-mode without authorization. Depending on device configuration and version, this may enable escalation to root-level access and persistent modification of the device software stack. Exploitation requires either a valid low-privilege account on the device (remote scenario) or physical serial console access (local scenario). This vulnerability is distinct from CVE-2017-14329, which addressed a different issue involving Python script privileges. Extreme would like to thank Hadrien Barral (Université Gustave Eiffel) and Georges-Axel Jaloyan (French Ministry of the Interior) for responsible disclosure of their findings.

Referencias oficiales

www.extremenetworks.comhttps://www.extremenetworks.com/support/policies/product-security

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