About “Postfix”

A curated feed of “Postfix”-related CVEs appears below. We currently track 39 CVEs for this tag (all time). In the last 365 days, 4 were published. Average CVSS is 6.3 (all time; 5.4 over 365d), and 31% are rated High/Critical (all time). Top CWEs (last 365 days): CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), CWE-193 - Off-by-one Error, CWE-863 - Incorrect Authorization.

In our taxonomy this topic maps to a MODERATE impact class. Mail servers and webmail risk credential theft and data exposure. Patch MTA or IMAP, enforce TLS and auth, lock down admin consoles, and validate anti spam or AV. Use the filters below to sort by CVSS, risk and CWE. Each detail page highlights vendor advisories and mitigation tips.

Support & lifecycle: postfix

This table shows recent release cycles and their projected end-of-life. Data source: endoflife.date.

CycleReleaseLatestEOLLTS
3.113.11.3-
3.103.10.10-
3.93.9.11-
3.83.8.17-
3.73.7.20 Expired
3.63.6.18 Expired
3.53.5.25 Expired
3.43.4.29 Expired
3.33.3.22 Expired
3.23.2.22 Expired
3.13.1.15 Expired
3.03.0.15 Expired
2.112.11.11 Expired
2.102.10.10 Expired
2.92.9.15 Expired
2.82.8.20 Expired
2.62.6.19 Expired
2.52.5.17 Expired

Maintained Soon (≤ 180 days) Expired

Subscribe lifecycle: RSS  ·  RSS (expired)  ·  ICS

Subscribe CVEs: RSS for “Postfix”  ·  RSS (High+Critical only)

CVEs tagged with this topic. Filters apply to the whole list (loaded from JSON).

CVSS ≥ 0.0
2026-05-20
High

CVE-2026-7460

mailcow-dockerized contains a stored cross-site scripting vulnerability in the administrator Queue Manager. The Queue Manager fetches mail queue entries from /api/v1/get/mailq/all, copies server-cont…

2026-05-04
Low

CVE-2026-43964

Postfix before 3.8.16, 3.9 before 3.9.10, and 3.10 before 3.10.9 sometimes allows a buffer over-read and process crash via an enhanced status code that lacks text after the third number.

2026-04-23
Medium

CVE-2026-41232

Froxlor is open source server administration software. Prior to version 2.3.6, in `EmailSender::add()`, the domain ownership validation for full email sender aliases uses the wrong array index when s…

2026-03-12
Medium

CVE-2026-32249

Vim is an open source, command line text editor. From 9.1.0011 to before 9.2.0137, Vim's NFA regex compiler, when encountering a collection containing a combining character as the endpoint of a chara…

2024-04-16
Medium

CVE-2024-32024

Kohya_ss is a GUI for Kohya's Stable Diffusion trainers. Kohya_ss is vulnerable to a path injection in the `common_gui.py` `add_pre_postfix` function. This vulnerability is fixed in 23.1.5.

2024-03-26
High

CVE-2023-52626

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix operation precedence bug in port timestamping napi_poll context Indirection (*) is of lower precedence than postfi…

2024-03-12
Medium

CVE-2024-27305

aiosmtpd is a reimplementation of the Python stdlib smtpd.py based on asyncio. aiosmtpd is vulnerable to inbound SMTP smuggling. SMTP smuggling is a novel vulnerability based on not so novel interpre…

2023-12-24
Medium

CVE-2023-51764

Postfix through 3.8.5 allows SMTP smuggling unless configured with smtpd_data_restrictions=reject_unauth_pipelining and smtpd_discard_ehlo_keywords=chunking (or certain other options that exist in re…

2023-09-19
Medium

CVE-2023-32182

A Improper Link Resolution Before File Access ('Link Following') vulnerability in SUSE SUSE Linux Enterprise Desktop 15 SP5 postfix, SUSE SUSE Linux Enterprise High Performance Computing 15 SP5 postf…

2023-06-07
High

CVE-2023-34108

mailcow is a mail server suite based on Dovecot, Postfix and other open source software, that provides a modern web UI for user/server administration. A vulnerability has been discovered in mailcow w…

2022-10-17
High

CVE-2022-3569

Due to an issue with incorrect sudo permissions, Zimbra Collaboration Suite (ZCS) suffers from a local privilege escalation issue in versions 9.0.0 and prior, where the 'zimbra' user can effectively…

2022-01-19
Critical

CVE-2021-33913

libspf2 before 1.2.11 has a heap-based buffer overflow that might allow remote attackers to execute arbitrary code (via an unauthenticated e-mail message from anywhere on the Internet) with a crafted…

Critical

CVE-2021-33912

libspf2 before 1.2.11 has a four-byte heap-based buffer overflow that might allow remote attackers to execute arbitrary code (via an unauthenticated e-mail message from anywhere on the Internet) with…

2021-06-28
Medium

CVE-2021-35525

PostSRSd before 1.11 allows a denial of service (subprocess hang) if Postfix sends certain long data fields such as multiple concatenated email addresses. NOTE: the PostSRSd maintainer acknowledges "…

2020-04-24
Medium

CVE-2020-12063

A certain Postfix 2.10.1-7 package could allow an attacker to send an email from an arbitrary-looking sender via a homoglyph attack, as demonstrated by the similarity of \xce\xbf to the 'o' character…

2020-01-22
Medium

CVE-2019-16791

In postfix-mta-sts-resolver before 0.5.1, All users can receive incorrect response from daemon under rare conditions, rendering downgrade of effective STS policy.

2018-04-16
High

CVE-2017-10140

Postfix before 2.11.10, 3.0.x before 3.0.10, 3.1.x before 3.1.6, and 3.2.x before 3.2.2 might allow local users to gain privileges by leveraging undocumented functionality in Berkeley DB 2.x and late…

2014-10-01
Medium

CVE-2012-0811

Multiple SQL injection vulnerabilities in Postfix Admin (aka postfixadmin) before 2.3.5 allow remote authenticated users to execute arbitrary SQL commands via (1) the pw parameter to the pacrypt func…

2014-04-02
Medium

CVE-2014-2655

SQL injection vulnerability in the gen_show_status function in functions.inc.php in Postfix Admin (aka postfixadmin) before 2.3.7 allows remote authenticated users to execute arbitrary SQL commands v…

2014-02-01
Medium

CVE-2013-7176

config/filter.d/postfix.conf in the postfix filter in Fail2ban before 0.8.11 allows remote attackers to trigger the blocking of an arbitrary IP address via a crafted e-mail address that matches an im…

2011-05-13
Medium

CVE-2011-1720

The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentication methods are enabled, does not create a new server han…

2011-03-16
Medium

CVE-2011-0411

The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 does not properly restrict I/O buffering, which allows man-in-the-middle at…

2010-01-22
High

CVE-2010-0230

SUSE Linux Enterprise 10 SP3 (SLE10-SP3) and openSUSE 11.2 configures postfix to listen on all network interfaces, which might allow remote attackers to bypass intended access restrictions.

2009-09-21
Medium

CVE-2009-2939

The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/postfix/pid, which might allow local users to conduct symlink a…

2008-11-06
Medium

CVE-2008-4977

postfix_groups.pl in Postfix 2.5.2 allows local users to overwrite arbitrary files via a symlink attack on the (1) /tmp/postfix_groups.stdout, (2) /tmp/postfix_groups.stderr, and (3) /tmp/postfix_gro…

2008-10-10
Medium

CVE-2008-3646

The Postfix configuration file in Mac OS X 10.5.5 causes Postfix to be network-accessible when mail is sent from a local command-line tool, which allows remote attackers to send mail to local Mac OS…

2008-09-12
Low

CVE-2008-3889

Postfix 2.4 before 2.4.9, 2.5 before 2.5.5, and 2.6 before 2.6-20080902, when used with the Linux 2.6 kernel, leaks epoll file descriptors during execution of "non-Postfix" commands, which allows loc…

2008-08-18
Medium

CVE-2008-2936

Postfix before 2.3.15, 2.4 before 2.4.8, 2.5 before 2.5.4, and 2.6 before 2.6-20080814, when the operating system supports hard links to symlinks, allows local users to append e-mail messages to a fi…

Low

CVE-2008-2937

Postfix 2.5 before 2.5.4 and 2.6 before 2.6-20080814 delivers to a mailbox file even when this file is not owned by the recipient, which allows local users to read e-mail messages by creating a mailb…

2007-07-15
High

CVE-2007-3791

Buffer overflow in the w_read function in sockets.c in Cami Sardinha and Nigel Kukard policyd before 1.81 for Postfix allows remote attackers to cause a denial of service and possibly execute arbitra…

2006-01-14
Medium

CVE-2006-0213

Kolab Server 2.0.1, 2.0.2 and development versions pre-2.1-20051215 and earlier, when authenticating users via secure SMTP, stores authentication credentials in plaintext in the postfix.log file, whi…

2005-05-02
High

CVE-2005-0337

Postfix 2.1.3, when /proc/net/if_inet6 is not available and permit_mx_backup is enabled in smtpd_recipient_restrictions, allows remote attackers to bypass e-mail restrictions and perform mail relayin…

Medium

CVE-2005-1127

Format string vulnerability in the log function in Net::Server 0.87 and earlier, as used in Postfix Greylisting Policy Server (Postgrey) 1.18 and earlier, and possibly other products, allows remote a…

2005-01-27
Medium

CVE-2004-0925

Postfix on Mac OS X 10.3.x through 10.3.5, with SMTPD AUTH enabled, does not properly clear the username between authentication attempts, which allows users with the longest username to prevent other…

2005-01-10
Critical

CVE-2004-1113

SQL injection vulnerability in SQLgrey Postfix greylisting service before 1.2.0 allows remote attackers to execute arbitrary SQL commands via the (1) sender or (2) recipient e-mail addresses.

2004-12-02
High

CVE-2004-1088

Postfix server for Apple Mac OS X 10.3.6, when using CRAM-MD5, allows remote attackers to send mail without authentication by replaying authentication information.

2003-08-27
Medium

CVE-2003-0468

Postfix 1.1.11 and earlier allows remote attackers to use Postfix to conduct "bounce scans" or DDos attacks of other hosts via an email address to the local host containing the target IP address and…

Medium

CVE-2003-0540

The address parser code in Postfix 1.1.12 and earlier allows remote attackers to cause a denial of service (lock) via (1) a malformed envelope address to a local host that would generate a bounce and…

2001-11-11
Medium

CVE-2001-0894

Vulnerability in Postfix SMTP server before 20010228-pl07, when configured to email the postmaster when SMTP errors cause the session to terminate, allows remote attackers to cause a denial of servic…

CVE Daily Lookup — auto-links CVE IDs on any page you visit. GitHub, Jira, Confluence & more. Free.