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TI-2003-00437 Aliases CVE-2003-0466GHSA-7c4w-gm97-vgqq

Off-by-one error in the fb_realpath() function, as derived from the realpath function in…

Priority HIGH 82CWE-193Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-193 and the CVSS impact.

Summary

Off-by-one error in the fb_realpath() function, as derived from the realpath function in BSD, may allow attackers to execute arbitrary code, as demonstrated in wu-ftpd 2.5.0 through 2.6.2 via commands that cause pathnames of length MAXPATHLEN+1 to trigger a buffer overflow, including (1) STOR, (2) RETR, (3) APPE, (4) DELE, (5) MKD, (6) RMD, (7) STOU, or (8) RNTO.

Why it matters now

EPSS 0.78115 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:a:redhat:wu_ftpd:2.6.1-16:*:*:*:*:*:*:*2.6.1-16VulnerableRed Hat
cpe:2.3:a:wuftpd:wu-ftpd:*:*:*:*:*:*:*:*2.5.0 – 2.6.2VulnerableWuftpd
cpe:2.3:o:apple:mac_os_x:10.2.6:*:*:*:*:*:*:*10.2.6VulnerableApple
cpe:2.3:o:apple:mac_os_x_server:10.2.6:*:*:*:*:*:*:*10.2.6VulnerableApple
cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*4.0 – 5.0VulnerableFreeBSD
cpe:2.3:o:netbsd:netbsd:*:*:*:*:*:*:*:*1.5 – 1.6.1VulnerableNetBSD
cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*2.0 – 3.3VulnerableOpenBSD
cpe:2.3:o:sun:solaris:9.0:*:*:*:*:sparc:*:*9.0VulnerableSun
  • cpe:2.3:a:redhat:wu_ftpd:2.6.1-16:*:*:*:*:*:*:* Versions 2.6.1-16 Vulnerable ·Red Hat
  • cpe:2.3:a:wuftpd:wu-ftpd:*:*:*:*:*:*:*:* Versions 2.5.0 – 2.6.2 Vulnerable ·Wuftpd
  • cpe:2.3:o:apple:mac_os_x:10.2.6:*:*:*:*:*:*:* Versions 10.2.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x_server:10.2.6:*:*:*:*:*:*:* Versions 10.2.6 Vulnerable ·Apple
  • cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* Versions 4.0 – 5.0 Vulnerable ·FreeBSD
  • cpe:2.3:o:netbsd:netbsd:*:*:*:*:*:*:*:* Versions 1.5 – 1.6.1 Vulnerable ·NetBSD
  • cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:* Versions 2.0 – 3.3 Vulnerable ·OpenBSD
  • cpe:2.3:o:sun:solaris:9.0:*:*:*:*:sparc:*:* Versions 9.0 Vulnerable ·Sun

Remediation

Red Hat 2 advisories

  • RHSA-2003:245 Released 2003-07-31 · Red Hat rating Important
    : Updated wu-ftpd packages fix remote vulnerability.
    • Red Hat Linux 7.1
    • Red Hat Linux 7.2
    • Red Hat Linux 7.3
    • Red Hat Linux 8.0
  • RHSA-2003:246 Released 2003-07-31 · Red Hat rating Important
    wu-ftpd security update
    • Red Hat Enterprise Linux AS (Advanced Server) version 2.1
    • Red Hat Enterprise Linux ES version 2.1
    • Red Hat Linux Advanced Workstation 2.1

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 Fixed RHSA-2003:246
Red Hat Enterprise Linux ES version 2.1Fixed RHSA-2003:246
Red Hat Linux 7.1Fixed RHSA-2003:245
Red Hat Linux 7.2Fixed RHSA-2003:245
Red Hat Linux 7.3Fixed RHSA-2003:245
Red Hat Linux 8.0Fixed RHSA-2003:245
Red Hat Linux Advanced Workstation 2.1Fixed RHSA-2003:246

Timeline

  1. 2026-10-02 Threatist record created from CVE-2003-0466
  2. 2026-10-03 Alias added: GHSA-7c4w-gm97-vgqq

References

Exploit 1

Advisory 10

Other 6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences