Format string vulnerability in wu-ftp 2.6.1 and earlier, when running with debug mode…
Priority MEDIUM 51Published · 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
Format string vulnerability in wu-ftp 2.6.1 and earlier, when running with debug mode enabled, allows remote attackers to execute arbitrary commands via a malformed argument that is recorded in a PASV port assignment.
Why it matters now
EPSS 0.05669 93rd 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 · 19
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:washington_university:wu-ftpd:2.4.1:*:*:*:*:*:*:* | 2.4.1 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta9:*:academ:*:*:*:*:* | 2.4.2_beta9 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18:*:academ:*:*:*:*:* | 2.4.2_beta18 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr4:*:*:*:*:*:*:* | 2.4.2_beta18_vr4 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr5:*:*:*:*:*:*:* | 2.4.2_beta18_vr5 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr6:*:*:*:*:*:*:* | 2.4.2_beta18_vr6 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr7:*:*:*:*:*:*:* | 2.4.2_beta18_vr7 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr8:*:*:*:*:*:*:* | 2.4.2_beta18_vr8 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr9:*:*:*:*:*:*:* | 2.4.2_beta18_vr9 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr10:*:*:*:*:*:*:* | 2.4.2_beta18_vr10 | Vulnerable | Washington University |
- cpe:2.3:a:washington_university:wu-ftpd:2.4.1:*:*:*:*:*:*:* Versions 2.4.1 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta9:*:academ:*:*:*:*:* Versions 2.4.2_beta9 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18:*:academ:*:*:*:*:* Versions 2.4.2_beta18 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr4:*:*:*:*:*:*:* Versions 2.4.2_beta18_vr4 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr5:*:*:*:*:*:*:* Versions 2.4.2_beta18_vr5 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr6:*:*:*:*:*:*:* Versions 2.4.2_beta18_vr6 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr7:*:*:*:*:*:*:* Versions 2.4.2_beta18_vr7 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr8:*:*:*:*:*:*:* Versions 2.4.2_beta18_vr8 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr9:*:*:*:*:*:*:* Versions 2.4.2_beta18_vr9 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr10:*:*:*:*:*:*:* Versions 2.4.2_beta18_vr10 Vulnerable ·Washington University
Show 9 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr11:*:*:*:*:*:*:* | 2.4.2_beta18_vr11 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr12:*:*:*:*:*:*:* | 2.4.2_beta18_vr12 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr13:*:*:*:*:*:*:* | 2.4.2_beta18_vr13 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr14:*:*:*:*:*:*:* | 2.4.2_beta18_vr14 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr15:*:*:*:*:*:*:* | 2.4.2_beta18_vr15 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_vr16:*:*:*:*:*:*:* | 2.4.2_vr16 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.4.2_vr17:*:*:*:*:*:*:* | 2.4.2_vr17 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.5:*:*:*:*:*:*:* | 2.5 | Vulnerable | Washington University |
| cpe:2.3:a:washington_university:wu-ftpd:2.6:*:*:*:*:*:*:* | 2.6 | Vulnerable | Washington University |
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr11:*:*:*:*:*:*:* Versions 2.4.2_beta18_vr11 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr12:*:*:*:*:*:*:* Versions 2.4.2_beta18_vr12 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr13:*:*:*:*:*:*:* Versions 2.4.2_beta18_vr13 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr14:*:*:*:*:*:*:* Versions 2.4.2_beta18_vr14 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr15:*:*:*:*:*:*:* Versions 2.4.2_beta18_vr15 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_vr16:*:*:*:*:*:*:* Versions 2.4.2_vr16 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.4.2_vr17:*:*:*:*:*:*:* Versions 2.4.2_vr17 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.5:*:*:*:*:*:*:* Versions 2.5 Vulnerable ·Washington University
- cpe:2.3:a:washington_university:wu-ftpd:2.6:*:*:*:*:*:*:* Versions 2.6 Vulnerable ·Washington University
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2001-0187
- 2026-10-03 Alias added: GHSA-9469-4325-qwhf
References
Advisory 2
More Washington University Wu-ftpd vulnerabilities
- TI-2001-00535 wu-ftpd 2.6.1 allows remote attackers to execute arbitrary commands via a "~{" argument… CVSS 2.0HIGH 7.5
- TI-1999-00363 Buffer overflows in wuarchive ftpd (wu-ftpd) and ProFTPD lead to remote root access… CVSS 2.0HIGH 10.0
- TI-2000-00572 FTP servers such as OpenBSD ftpd, NetBSD ftpd, ProFTPd and Opieftpd do not properly… CVSS 2.0MEDIUM 5.0
- TI-2004-00160 Buffer overflow in the skey_challenge function in ftpd.c for wu-ftp daemon (wu-ftpd)… CVSS 2.0HIGH 10.0
- TI-1999-00079 Certain configurations of wu-ftp FTP server 2.4 use a _PATH_EXECPATH setting to a… CVSS 2.0HIGH 10.0
- TI-1999-00828 Buffer overflow in WU-FTPD and related FTP servers allows remote attackers to gain root privileges via MAPPING_CHDIR. CVSS 2.0HIGH 10.0
Sources
- CVE-2001-0187 · CVE Program
- CVE-2001-0187 · NVD
- FIRST EPSS
- GHSA-9469-4325-qwhf · GitHub Advisory Database · CC BY 4.0
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