cvedb.io
CVE-2026-40356
MEDIUM · CVSS 5.9
EPSS exploitation probability: 0%
Published 2026-04-28T07:16:03.197 · Last modified 2026-06-17T10:45:10.547

Summary

In MIT Kerberos 5 (aka krb5) before 1.22.3, there is an integer underflow and resultant out-of-bounds read 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, possibly causing the process to terminate in parse_message.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.