Buffer overflow in krb_rd_req function in Kerberos 4 and 5 allows remote attackers to gain root privileges.
Priority MEDIUM 59Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Buffer overflow in krb_rd_req function in Kerberos 4 and 5 allows remote attackers to gain root privileges.
Why it matters now
EPSS 0.16503 97th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cygnus:cygnus_network_security:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Cygnus |
| cpe:2.3:a:cygnus:kerbnet:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Cygnus |
| cpe:2.3:a:mit:kerberos:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.1.1:*:*:*:*:*:*:* | 1.1.1 | Vulnerable | moos-ivp |
| cpe:2.3:o:redhat:linux:6.2:*:alpha:*:*:*:*:* | 6.2 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:linux:6.2:*:i386:*:*:*:*:* | 6.2 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:linux:6.2:*:sparc:*:*:*:*:* | 6.2 | Vulnerable | Red Hat |
- cpe:2.3:a:cygnus:cygnus_network_security:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Cygnus
- cpe:2.3:a:cygnus:kerbnet:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Cygnus
- cpe:2.3:a:mit:kerberos:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.1.1:*:*:*:*:*:*:* Versions 1.1.1 Vulnerable ·moos-ivp
- cpe:2.3:o:redhat:linux:6.2:*:alpha:*:*:*:*:* Versions 6.2 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:linux:6.2:*:i386:*:*:*:*:* Versions 6.2 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:linux:6.2:*:sparc:*:*:*:*:* Versions 6.2 Vulnerable ·Red Hat
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2000-0389
- 2026-10-03 Alias added: GHSA-4jvw-4fhr-v7mv
References
Sources
- CVE-2000-0389 · CVE Program
- CVE-2000-0389 · NVD
- FIRST EPSS
- GHSA-4jvw-4fhr-v7mv · GitHub Advisory Database · CC BY 4.0
- CVE-2000-0389 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences