CVE-2005-1175: Heap-based buffer overflow in the Key Distribution Center (KDC) in MIT Kerberos 5 (krb5) 1.4.1 and earlier...

Security readout for executives and security teams

This flaw affects the Kerberos KDC, a core authentication service. A remote attacker could send a valid network request that crashes the KDC and may allow arbitrary code execution. Because KDC outages can disrupt logins across dependent systems, any remaining MIT krb5 1.4.1 or earlier deployment should be treated as urgent legacy risk. Exposure is likely limited to legacy or unpatched Kerberos KDC servers running MIT krb5 1.4.1 or earlier, or vendor packages covered by 2005 advisories. Modern systems are only implicated if they retain vulnerable Kerberos components. Prioritize remediation if Kerberos supports production identity, domain authentication, or privileged access. The issue is old, but any remaining vulnerable KDC represents central authentication outage risk and possible compromise of a high-value trust service. Mitigation focus: Identify all Kerberos KDC servers and their krb5 package versions.; Apply relevant MIT Kerberos or operating-system vendor security updates.; Retire or isolate unsupported krb5 1.4.1 and earlier deployments..

Prepared

Jun 29, 2026, 19:05 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.