Kerberos 4 (aka krb4) allows local users to overwrite arbitrary files via a symlink attack on new ticket files.
Priority LOW 11Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Kerberos 4 (aka krb4) allows local users to overwrite arbitrary files via a symlink attack on new ticket files.
Why it matters now
EPSS 0.00412 35th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2001-0417
- 2026-10-03 Alias added: GHSA-84hw-m4f3-jqjx
References
More moos-ivp Kerberos vulnerabilities
- TI-2001-00539 Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows… CVSS 2.0HIGH 10.0
- TI-2000-00389 Buffer overflow in krb_rd_req function in Kerberos 4 and 5 allows remote attackers to gain root privileges. CVSS 2.0HIGH 10.0
- TI-2004-00472 Multiple buffer overflows in krb5_aname_to_localname for MIT Kerberos 5 (krb5) 1.3.3 and… CVSS 2.0HIGH 10.0
- TI-2009-03997 Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the… CVSS 2.0HIGH 10.0
- TI-2000-00391 Buffer overflow in krshd in Kerberos 5 allows remote attackers to gain root privileges. CVSS 2.0HIGH 10.0
- TI-2000-00390 Buffer overflow in krb425_conv_principal function in Kerberos 5 allows remote attackers to gain root privileges. CVSS 2.0HIGH 10.0
Sources
- CVE-2001-0417 · CVE Program
- CVE-2001-0417 · NVD
- FIRST EPSS
- GHSA-84hw-m4f3-jqjx · GitHub Advisory Database · CC BY 4.0
- CVE-2001-0417 · Red Hat security data · CC BY 4.0
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