Vulnerability Database

308,379

Total vulnerabilities in the database

CVE-2003-0138

Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack.

  • Published: Mar 24, 2003
  • Updated: Nov 9, 2025
  • CVE: CVE-2003-0138
  • Severity: High
  • Exploit:

CVSS v2:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/Au:N/C:P/I:P/A:P

No CWE or OWASP classifications available.

Software From Fixed in
mit / kerberos 4 4.x