CVE-2003-0138 — HIGH severity vulnerability (Version 4 of the Kerberos protocol (krb4), as used in Heimda)
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.
| CVE ID | CVE-2003-0138 |
|---|---|
| Severity | HIGH |
| CVSS score | 7.5 |
| CVSS vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| CWE | NVD-CWE-Other |
| Status | Modified |
| Published | 2003-03-24 |
| Last modified | 2026-04-16 |
| Description | 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. |
| Source | NIST National Vulnerability Database |
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