CVE-2000-0389

Exp

Buffer overflow in krb_rd_req function in Kerberos 4 and 5 allows remote attackers to gain root privileges.

Published: 2000-05-16 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2000-0389 is rated High Exploit Risk (82.6/100): CVSS Critical severity, with high exploitation likelihood (EPSS 11.01%, 93th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2000-0389

EDB-ID Source Kind Published Link
19925 exploit_db edb 2000-05-26 Exploit-DB ↗
19924 exploit_db edb 2000-05-16 Exploit-DB ↗
19926 exploit_db edb 2000-04-08 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2000-0389

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 15.93% 11.01% -4.92%
2 2025-03-29 11.01% 15.93% +4.92%
3 2025-03-19 — 11.01% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2000-0389

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2000-0389

OS Trackers for CVE-2000-0389

vendor priority summary link
redhat — — https://access.redhat.com/security/cve/CVE-2000-0389

Affected software / configurations for CVE-2000-0389

Vendor Product Version Raw CPE
cygnus cygnus_network_security 4.0 cpe:2.3:a:cygnus:cygnus_network_security:4.0:*:*:*:*:*:*:*
cygnus kerbnet 5.0 cpe:2.3:a:cygnus:kerbnet:5.0:*:*:*:*:*:*:*
mit kerberos 4.0 cpe:2.3:a:mit:kerberos:4.0:*:*:*:*:*:*:*
mit kerberos_5 1.0 cpe:2.3:a:mit:kerberos_5:1.0:*:*:*:*:*:*:*
mit kerberos_5 1.1.1 cpe:2.3:a:mit:kerberos_5:1.1.1:*:*:*:*:*:*:*
redhat linux 6.2 cpe:2.3:o:redhat:linux:6.2:*:alpha:*:*:*:*:*
redhat linux 6.2 cpe:2.3:o:redhat:linux:6.2:*:i386:*:*:*:*:*
redhat linux 6.2 cpe:2.3:o:redhat:linux:6.2:*:sparc:*:*:*:*:*

References for CVE-2000-0389

cvelogic Threat Intelligence