CVE-2003-0139: Mit Kerberos

High severity, CVSS 7.5. EPSS: 4.3% chance of exploitation in the next 30 days.

Certain weaknesses in the implementation of version 4 of the Kerberos protocol (krb4) in the krb5 distribution, when triple-DES keys are used to key krb4 services, allow an attacker to create krb4 tickets for unauthorized principals using a cut-and-paste attack and "ticket splicing."

Affected products

• Mit Kerberos: version 4 only

Published 2003-03-24. Last modified 2026-06-16.