CVE-2004-1135Ws FTP Server Vulnerability
Multiple buffer overflows in WS_FTP Server 5.03 2004.10.14 allow remote attackers to cause a denial of service (service crash) via long (1) SITE, (2) XMKD, (3) MKD, and (4) RNFR commands.
Published Jan 10, 2005 · Updated Apr 15, 2026
Key Facts
Routine patching- CVE-2004-1135 is a medium-severity vulnerability (CVSS 5.0 v2) affecting Ws FTP Server (Ipswitch).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 50% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Scores
CVSS v2
5.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS (30-day exploit likelihood)
50%
Higher than 98.8% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
50/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
3
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Description
Multiple buffer overflows in WS_FTP Server 5.03 2004.10.14 allow remote attackers to cause a denial of service (service crash) via long (1) SITE, (2) XMKD, (3) MKD, and (4) RNFR commands.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Ws FTP ServerIpswitch | 5.03 | n/a |
Timeline
Publicly disclosed
Jan 10, 2005
Last updated
Apr 15, 2026
References
- exploitMSF wsftp_server_503_mkd.rb
- exploitExploitDB-16719
- exploitExploitDB-664
- other20041129 Multiple buffer overlows in WS_FTP Server Version 5.03, 2004.10.14.
- other20041129 Multiple buffer overlows in WS_FTP Server Version 5.03, 2004.10.14.
FAQ
Common Questions.
Multiple buffer overflows in WS_FTP Server 5.03 2004.10.14 allow remote attackers to cause a denial of service (service crash) via long (1) SITE, (2) XMKD, (3) MKD, and (4) RNFR commands.
Affected: Ws FTP Server (Ipswitch) versions 5.03. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Is CVE-2004-1135 On Your Attack Surface?
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