Security Advisory

CVE-2026-40355

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-04-28 00:00:00

Last updated 2026-07-14 12:48:52

Assigner mitre

CVSS score 5.9

State PUBLISHED

Description

In MIT Kerberos 5 (aka krb5) before 1.22.3, there is a NULL pointer dereference if an application calls gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, causing the process to terminate in parse_nego_message.

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