CVE-2007-3149: Mit Kerberos 5

High severity, CVSS 7.2. EPSS: 0.4% chance of exploitation in the next 30 days.

sudo, when linked with MIT Kerberos 5 (krb5), does not properly check whether a user can currently authenticate to Kerberos, which allows local users to gain privileges, in a manner unintended by the sudo security model, via certain KRB5_ environment variable settings. NOTE: another researcher disputes this vulnerability, stating that the attacker must be "a user, who can already log into your system, and can already use sudo."

Affected products

• Mit Kerberos 5: affected versions not specified
• Todd Miller Sudo: version 1.6.8_p12 only

Published 2007-06-11. Last modified 2026-06-16.