CVE-1999-0911Proftpd Vulnerability
Buffer overflow in ProFTPD, wu-ftpd, and beroftpd allows remote attackers to gain root access via a series of MKD and CWD commands that create nested directories.
Published Aug 27, 1999 · Updated Apr 15, 2026
Key Facts
Patch immediately- CVE-1999-0911 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Proftpd (Proftpd Project).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 38% 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 public exploit code exists for a high-severity flaw.
Scores
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
38%
Higher than 98.5% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
42/100
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
Proof of concept
Public exploit code
2
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Description
Buffer overflow in ProFTPD, wu-ftpd, and beroftpd allows remote attackers to gain root access via a series of MKD and CWD commands that create nested directories.
Affected Products
5 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ProftpdProftpd Project | 1.2_pre1, 1.2_pre2, 1.2_pre3, 1.2_pre4, 1.2_pre5 | n/a |
Timeline
Publicly disclosed
Aug 27, 1999
Last updated
Apr 15, 2026
References
- exploitExploitDB-19475
- exploitExploitDB-19476
- other19990210
- other612
FAQ
Common Questions.
Buffer overflow in ProFTPD, wu-ftpd, and beroftpd allows remote attackers to gain root access via a series of MKD and CWD commands that create nested directories.
Affected: Proftpd (Proftpd Project) versions 1.2_pre1, 1.2_pre2, 1.2_pre3, 1.2_pre4, 1.2_pre5. 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 public exploit code exists for a high-severity flaw.
Is CVE-1999-0911 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
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