CVE-2005-3683
HighPublic exploitStack-based buffer overflow in freeFTPd before 1.0.9 with Logging enabled, allows remote attackers to cause a denial of service (application crash), and possibly execute arbitrary code, via a long USER command.
Published Nov 18, 2005 · Updated Apr 15, 2026
Key Facts
Patch immediately- CVE-2005-3683 is a high-severity vulnerability (CVSS 7.5 v2) affecting Freeftpd.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 72% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
72%
Higher than 99.4% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
Stack-based buffer overflow in freeFTPd before 1.0.9 with Logging enabled, allows remote attackers to cause a denial of service (application crash), and possibly execute arbitrary code, via a long USER command.
Affected Products
9 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| FreeftpdFreeftpd | 1.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7 | n/a |
Timeline
Publicly disclosed
Nov 18, 2005
Last updated
Apr 15, 2026
References
- advisory1015230
- patch17583
- patch20909
- exploitMSF freeftpd_user.rb
- exploitExploitDB-1330
FAQ
Common Questions.
Stack-based buffer overflow in freeFTPd before 1.0.9 with Logging enabled, allows remote attackers to cause a denial of service (application crash), and possibly execute arbitrary code, via a long USER command.
Affected: Freeftpd versions 1.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7. 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: patch immediately, because it is very likely to be exploited soon.
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