CVE-2006-6143: The RPC library in Kerberos 5 1.4 through 1.4.4, and 1.5 through 1.5.1, as used in Kerberos administration...

Security readout for executives and security teams

This is a legacy Kerberos 5 flaw in an RPC library used by the Kerberos administration daemon. A remote attacker could crash affected services, and the public CVE description says arbitrary code execution may be possible. The bundle does not show active exploitation. Exposure is most likely on legacy or unpatched systems running the affected Kerberos 5 versions or downstream Kerberos packages covered by 2007 vendor advisories. Internet or broadly reachable Kerberos administration services would raise operational risk. Treat this as high priority for legacy identity infrastructure. Kerberos supports authentication, so outages or compromise can affect many dependent systems. Modern patched environments are less likely exposed, but old systems should be found and updated quickly. Mitigation focus: Apply vendor Kerberos updates from MIT or the affected OS distributor.; Prioritize systems exposing kadmind or Kerberos RPC services to untrusted networks.; Restrict network access to Kerberos administration services until patched..

Prepared

Jun 29, 2026, 08:16 UTC (UTC+00:00)

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