Proftpd vulnerabilities1 known to be exploited.
Proftpd has 28 published vulnerabilities across 1 product in our catalogue. 1 of them is on the list of flaws known to be exploited, so criminals are using them now. The most affected product is Proftpd, with 28. If you run Proftpd software, patch the exploited flaws first.
The most recent Proftpd flaw added to the known-exploited list is CVE-2015-3306, on 8 October 2026. We keep watching the known-exploited list.
Which Proftpd products have the most vulnerabilities?
Proftpd leads with 28 published vulnerabilities. Open a product to see its versions and which of its flaws criminals are already using.
Which Proftpd vulnerabilities are being exploited?
1 flaw is on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 10.0ProFTPD Improper Access Control Vulnerability
ProFTPD contains an improper access control vulnerability that could allow remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.
Which Proftpd flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- >99%
The mod_copy module in ProFTPD 1.3.5 allows remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.
- 94%CVE-2023-48795Medium
The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension...
- 91%CVE-2010-4221Critical
Multiple stack-based buffer overflows in the pr_netio_telnet_gets function in netio.c in ProFTPD before 1.3.3c allow remote attackers to execute arbitrary code via vectors involving a TELNET IAC escape character to a...
- 58%CVE-2019-12815Critical
An arbitrary file copy vulnerability in mod_copy in ProFTPD up to 1.3.5b allows for remote code execution and information disclosure without authentication, a related issue to CVE-2015-3306.
- 45%CVE-2001-0136Medium
Memory leak in ProFTPd 1.2.0rc2 allows remote attackers to cause a denial of service via a series of USER commands, and possibly SIZE commands if the server has been improperly installed.
- 31%CVE-2004-1602Medium
ProFTPD 1.2.x, including 1.2.8 and 1.2.10, responds in a different amount of time when a given username exists, which allows remote attackers to identify valid usernames by timing the server response.
- 28%CVE-2011-1137Medium
Integer overflow in the mod_sftp (aka SFTP) module in ProFTPD 1.3.3d and earlier allows remote attackers to cause a denial of service (memory consumption leading to OOM kill) via a malformed SSH message.
- 20%CVE-2019-18217High
ProFTPD before 1.3.6b and 1.3.7rc before 1.3.7rc2 allows remote unauthenticated denial-of-service due to incorrect handling of overly long commands because main.c in a child process enters an infinite loop.
- 16%CVE-2009-0543Medium
ProFTPD Server 1.3.1, with NLS support enabled, allows remote attackers to bypass SQL injection protection mechanisms via invalid, encoded multibyte characters, which are not properly handled in (1) mod_sql_mysql and...
All Proftpd products we track.
1 products, most vulnerabilities first. Find the ones you run, then open a product to see its versions and exploited flaws.
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1 flaw being exploited affects software Acme tracks
ProFTPD contains an improper access control vulnerability that could allow remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.
- Matched to
- Proftpd on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
Our catalogue lists 28 published vulnerabilities across 1 product and 26 versions from Proftpd. The most recent Proftpd flaw added to the known-exploited list is CVE-2015-3306, on 8 October 2026.
1 Proftpd vulnerability is on the list of flaws known to be exploited. The most recently added is CVE-2015-3306. The full list is on this page.
Proftpd, with 28 published vulnerabilities. Its own page lists the ones known to be exploited.
Create a Precursor Intelligence account and track the Proftpd products you run. We match them against every published flaw, give each one a risk score from 0 to 100 and tell you as soon as we spot one that affects you, by email, in the app or by webhook.