CVE-2007-5972: Double free vulnerability in the krb5_def_store_mkey function in lib/kdb/kdb_default.c in MIT Kerberos 5 (k...

Security readout for executives and security teams

CVE-2007-5972 is a double-free memory handling flaw in MIT Kerberos 5 1.5 code related to storing the KDC master key. The public record says impact is unknown and requires authenticated privileges to store that key, so exposure appears limited to highly privileged Kerberos administration paths. Organizations are mainly exposed if they still run MIT Kerberos 5 1.5 or vulnerable downstream Kerberos packages on KDC or administrative systems. Normal unauthenticated internet users are not described as viable attackers in the supplied sources. This is not evidenced as an active mass-exploitation issue, but it touches authentication infrastructure. Prioritize discovery and patching of old Kerberos deployments, especially KDCs, because failures or abuse in this area can affect enterprise login and service authentication. Mitigation focus: Inventory Kerberos KDC and admin hosts for MIT krb5 1.5 or related vendor packages.; Apply vendor guidance from Ubuntu, SUSE, or the relevant operating system distributor.; Restrict who can perform KDC master-key storage or Kerberos database administration..

Prepared

Jun 28, 2026, 19:45 UTC (UTC+00:00)

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