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Including CVEs outside Waratek scope✕Vendor proftpd✕
Overview 32 matches · 0 in Waratek scope · 0 protected · 4 exploited · 1 CISA KEV · 13 public PoC · 3 EPSS ≥ 0.5
32matches 0in Waratek scope0.0% 0protected0.0% 4exploited12.5% 1CISA KEV3.1% 13public PoC40.6% 3EPSS ≥ 0.59.4%
Protected by Waratek 0 0.0% Rule in development 0 0.0% Mitigation candidate 0 0.0% No exploit published 0 0.0% Outside Waratek scope 0 0.0% Not applicable 32 100.0% Withdrawn CVE 0 0.0%
Critical 3 9.4% High 18 56.2% Medium 10 31.2% Low 1 3.1% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 0 0.0% partly blocked 0 0.0% not blocked 32 100.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 4 12.5% Working exploit published 8 25.0% Proof of concept only 2 6.2% Forecast only 0 0.0% No public exploit 18 56.2%
split by peak 6 / year
Not applicable: 32 Low: 1Medium: 10High: 18Critical: 3 not blocked: 32 No public exploit: 18Proof of concept only: 2Working exploit published: 8Exploited: 4
20011 Not applicable1 Medium1 not blocked1 Working exploit published1 20020 20030 20042 Not applicable2 High1 Medium1 not blocked2 Working exploit published1 No public exploit1 20050 20060 20070 20080 20092 Not applicable2 Medium2 not blocked2 Working exploit published1 No public exploit1 20103 Not applicable3 High2 Medium1 not blocked3 Working exploit published2 No public exploit1 20113 Not applicable3 High1 Medium2 not blocked3 Exploited1 Working exploit published1 No public exploit1 20120 20132 Not applicable2 Medium1 Low1 not blocked2 No public exploit2 20140 20151 Not applicable1 Critical1 not blocked1 Exploited1 20161 Not applicable1 High1 not blocked1 No public exploit1 20171 Not applicable1 Medium1 not blocked1 No public exploit1 20180 20196 Not applicable6 Critical1 High4 Medium1 not blocked6 Working exploit published1 Proof of concept only1 No public exploit4 20202 Not applicable2 High2 not blocked2 Proof of concept only1 No public exploit1 20210 20221 Not applicable1 High1 not blocked1 No public exploit1 20231 Not applicable1 High1 not blocked1 Working exploit published1 20240 20251 Not applicable1 Critical1 not blocked1 Exploited1 20265 Not applicable5 High5 not blocked5 Exploited1 No public exploit4
200220052008201120142017202020232026
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CVE Severity Published▾ Status Exploitation Description
CVE-2026-63091 High 2026-07-20 Not applicable No public exploit ProFTPD before 1.3.9c and 1.3.10rc3 contains a signed integer overflow vulnerability in the mod_sftp module's SCP size-record parser that allows authenticated low-privilege attackers to bypass ASLR by sending a crafted file size value of UINT64_MAX, which results in a negative off_t value. Attackers can exploit the subsequent conversion to uint32_t, causing an approximately 4 GB requested read length and forcing the server to read beyond the end of the SSH channel data and write overread process memory into the uploaded file. In tested configurations, the disclosed data contains libc, libcrypto, and PIE pointers sufficient to derive their randomized base addresses, thereby bypassing ASLR and enabling reliable exploitation of memory corruption vulnerabilities in the same process.
CVE-2026-63090 High 2026-07-20 Not applicable No public exploit ProFTPD before 1.3.9c and 1.3.10rc3 contains a heap-based buffer overflow vulnerability in the mod_sftp module that allows authenticated low-privilege attackers to achieve arbitrary code execution by sending crafted SFTP packet fragments exceeding the 16 KB reassembly buffer in the fxp.c component. Attackers can supply oversized fragments to trigger an incorrectly conditioned reallocation, corrupt pool freelist metadata, overwrite the root_fs BSS global pointer to reference a fake filesystem struct, and redirect pr_fsio_stat() to system() via a crafted RENAME request.
CVE-2026-53994 High 2026-07-18 Not applicable No public exploit ProFTPD mod_sftp contains a heap-based buffer overflow reachable by an authenticated SFTP user. The fxp_packet_read() function accepts the attacker-supplied 32-bit big-endian SFTP packet length without a minimum sanity check. A value of 0 causes an unsigned subtraction elsewhere in the read path to underflow to approximately 4 GB. That oversized request reaches the core memory allocator, where the rounded size is computed in size_t but passed to new_block() as a 32-bit int; the low 32 bits of 0x100000000 are 0, so new_block() returns a small (~512-byte) block while the caller is told it received ~4 GB. The subsequent fill loop then streams attacker-controlled bytes past the end of the 544-byte allocation, producing an attacker-controlled heap buffer overflow. An authenticated user can crash the per-connection ProFTPD session child on demand with a single malformed SFTP packet (packet_len=0 followed by a body greater than approximately 544 bytes), producing reliable authenticated remote denial of service. Depending on heap layout and adjacent allocations, heap metadata corruption and further consequences beyond denial of service may be possible, though only denial of service is demonstrated by the supplied proof of concept.
CVE-2026-35025 High 2026-06-24 Not applicable No public exploit ProFTPD through 1.3.9b and 1.3.10rc2 contains an access control bypass vulnerability that allows authenticated FTP users to circumvent Directory ACL restrictions by prefixing paths with /proc/self/root in the RNFR command handler. Attackers can exploit the unresolved symlink components in dir_canonical_path() to cause dir_check() to perform lexical path comparisons that match no configured Directory block, enabling rename operations on files in DenyAll-protected directories and subsequent retrieval of those files. Mitigation: Sessions configured with DefaultRoot (chroot) are not affected, as chroot changes the directory to which /proc/self/root resolves.
CVE-2026-42167 High 2026-04-28 Not applicable Exploited mod_sql in ProFTPD before 1.3.9a allows remote attackers to execute arbitrary code via a username, in scenarios where there is logging of USER requests with an expansion such as %U, and the SQL backend allows commands (e.g., COPY TO PROGRAM).
CVE-2010-20103 Critical 2025-08-20 Not applicable Exploited A malicious backdoor was embedded in the official ProFTPD 1.3.3c source tarball distributed between November 28 and December 2, 2010. The backdoor implements a hidden FTP command trigger that, when invoked, causes the server to execute arbitrary shell commands with root privileges. This allows remote, unauthenticated attackers to run any OS command on the FTP server host.
CVE-2023-51713 High 2023-12-22 Not applicable Working exploit published make_ftp_cmd in main.c in ProFTPD before 1.3.8a has a one-byte out-of-bounds read, and daemon crash, because of mishandling of quote/backslash semantics.
CVE-2021-46854 High 2022-11-23 Not applicable No public exploit mod_radius in ProFTPD before 1.3.7c allows memory disclosure to RADIUS servers because it copies blocks of 16 characters.
CVE-2020-9273 High 2020-02-20 Not applicable Proof of concept only In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a use-after-free in alloc_pool in pool.c, and possible remote code execution.
CVE-2020-9272 High 2020-02-20 Not applicable No public exploit ProFTPD 1.3.7 has an out-of-bounds (OOB) read vulnerability in mod_cap via the cap_text.c cap_to_text function.
CVE-2019-19269 Medium 2019-11-30 Not applicable No public exploit An issue was discovered in tls_verify_crl in ProFTPD through 1.3.6b. A dereference of a NULL pointer may occur. This pointer is returned by the OpenSSL sk_X509_REVOKED_value() function when encountering an empty CRL installed by a system administrator. The dereference occurs when validating the certificate of a client connecting to the server in a TLS client/server mutual-authentication setup.
CVE-2019-19272 High 2019-11-26 Not applicable No public exploit An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. Direct dereference of a NULL pointer (a variable initialized to NULL) leads to a crash when validating the certificate of a client connecting to the server in a TLS client/server mutual-authentication setup.
CVE-2019-19271 High 2019-11-26 Not applicable No public exploit An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable, used when checking a client certificate against CRL entries (installed by a system administrator), can cause some CRL entries to be ignored, and can allow clients whose certificates have been revoked to proceed with a connection to the server.
CVE-2019-19270 High 2019-11-26 Not applicable No public exploit An issue was discovered in tls_verify_crl in ProFTPD through 1.3.6b. Failure to check for the appropriate field of a CRL entry (checking twice for subject, rather than once for subject and once for issuer) prevents some valid CRLs from being taken into account, and can allow clients whose certificates have been revoked to proceed with a connection to the server.
CVE-2019-18217 High 2019-10-21 Not applicable Working exploit published 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.
CVE-2019-12815 Critical 2019-07-19 Not applicable Proof of concept only 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.
CVE-2017-7418 Medium 2017-04-04 Not applicable No public exploit ProFTPD before 1.3.5e and 1.3.6 before 1.3.6rc5 controls whether the home directory of a user could contain a symbolic link through the AllowChrootSymlinks configuration option, but checks only the last path component when enforcing AllowChrootSymlinks. Attackers with local access could bypass the AllowChrootSymlinks control by replacing a path component (other than the last one) with a symbolic link. The threat model includes an attacker who is not granted full filesystem access by a hosting provider, but can reconfigure the home directory of an FTP user.
CVE-2016-3125 High 2016-04-05 Not applicable No public exploit The mod_tls module in ProFTPD before 1.3.5b and 1.3.6 before 1.3.6rc2 does not properly handle the TLSDHParamFile directive, which might cause a weaker than intended Diffie-Hellman (DH) key to be used and consequently allow attackers to have unspecified impact via unknown vectors.
CVE-2015-3306 Critical 2015-05-18 Not applicable Exploited 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.
CVE-2013-4359 Medium 2013-09-30 Not applicable No public exploit Integer overflow in kbdint.c in mod_sftp in ProFTPD 1.3.4d and 1.3.5r3 allows remote attackers to cause a denial of service (memory consumption) via a large response count value in an authentication request, which triggers a large memory allocation.
CVE-2012-6095 Low 2013-01-24 Not applicable No public exploit ProFTPD before 1.3.5rc1, when using the UserOwner directive, allows local users to modify the ownership of arbitrary files via a race condition and a symlink attack on the (1) MKD or (2) XMKD commands.
CVE-2011-4130 High 2011-12-06 Not applicable Exploited Use-after-free vulnerability in the Response API in ProFTPD before 1.3.3g allows remote authenticated users to execute arbitrary code via vectors involving an error that occurs after an FTP data transfer.
CVE-2011-1137 Medium 2011-03-11 Not applicable Working exploit published 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.
CVE-2010-4652 Medium 2011-02-02 Not applicable No public exploit Heap-based buffer overflow in the sql_prepare_where function (contrib/mod_sql.c) in ProFTPD before 1.3.3d, when mod_sql is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted username containing substitution tags, which are not properly handled during construction of an SQL query.
CVE-2010-4221 High 2010-11-09 Not applicable Working exploit published 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 (1) FTP or (2) FTPS server.
CVE-2010-3867 High 2010-11-09 Not applicable Working exploit published Multiple directory traversal vulnerabilities in the mod_site_misc module in ProFTPD before 1.3.3c allow remote authenticated users to create directories, delete directories, create symlinks, and modify file timestamps via directory traversal sequences in a (1) SITE MKDIR, (2) SITE RMDIR, (3) SITE SYMLINK, or (4) SITE UTIME command.
CVE-2008-7265 Medium 2010-11-09 Not applicable No public exploit The pr_data_xfer function in ProFTPD before 1.3.2rc3 allows remote authenticated users to cause a denial of service (CPU consumption) via an ABOR command during a data transfer.
CVE-2009-3639 Medium 2009-10-28 Not applicable No public exploit The mod_tls module in ProFTPD before 1.3.2b, and 1.3.3 before 1.3.3rc2, when the dNSNameRequired TLS option is enabled, does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 client certificate, which allows remote attackers to bypass intended client-hostname restrictions via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
CVE-2009-0543 Medium 2009-02-12 Not applicable Working exploit published 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 (2) mod_sql_postgres.
CVE-2004-0346 High 2004-11-23 Not applicable No public exploit Off-by-one buffer overflow in _xlate_ascii_write() in ProFTPD 1.2.7 through 1.2.9rc2p allows local users to gain privileges via a 1024 byte RETR command.
CVE-2004-1602 Medium 2004-10-15 Not applicable Working exploit published 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.
CVE-2001-0136 Medium 2001-03-12 Not applicable Working exploit published 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.