Important: Red Hat Security Advisory: postfix security update

An update for postfix is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available fo...

Important: Red Hat Security Advisory: postfix security update

An update for postfix is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerabili...

RHEL 8 : postfix (RHSA-2026:50963)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:50963 advisory. The postfix packages provide a Mail Transport Agent MTA, which supports protocols like LDAP, SMTP AUTH SASL, and TLS. Security Fixes: postfix: buffe...

RHEL 8 : postfix (RHSA-2026:50964)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:50964 advisory. The postfix packages provide a Mail Transport Agent MTA, which supports protocols like LDAP, SMTP AUTH SASL, and TLS. Security Fixes: postfix: buffe...

Alibaba Cloud Linux 3 : 0173: postfix (ALINUX3-SA-2026:0173)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by a vulnerability as referenced in the ALINUX3-SA-2026:0173 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2026-43964: Postfix before 3.8.16, 3.9 before...

ROS-20260625-73-0021

The vulnerability in Postfix is related to a single-byte offset error. Exploiting this vulnerability could allow an attacker to cause a service failure...

RockyLinux 8 : postfix (RLSA-2026:25932)

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:25932 advisory. postfix: buffer over-read via malformed enhanced status code CVE-2026-43964 Tenable has extracted the preceding description block directly from the RockyLinux...

MiracleLinux 8 : postfix-3.5.8-8.el8_10 (AXSA:2026-789:01)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-789:01 advisory. postfix: buffer over-read via malformed enhanced status code CVE-2026-43964 Tenable has extracted the preceding description block directly from the MiracleLin...

postfix: buffer over-read via malformed enhanced status code

A flaw was found in Postfix. This issue occurs when processing enhanced status codes, specifically an enhanced status code that lacks text following the third number. Depending on the configuration of the server, this allows a remote attacker to cause a buffer over-read of only 1 byte, leading to...

RHEL 10 : postfix (RHSA-2026:25930)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:25930 advisory. The postfix packages provide a Mail Transport Agent MTA, which supports protocols like LDAP, SMTP AUTH SASL, and TLS. Security Fixes: postfix: buff...

USN-8253-2: Postfix vulnerability

USN-8253-1 fixed a vulnerability in Postfix. This update provides the corresponding fix for Postfix on Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. Original advisory details: Kamil Frankowicz discovered that Postfix incorrectly handled certain enhanced status codes....

CVE-2026-43964

A flaw was found in Postfix. This issue occurs when processing enhanced status codes, specifically an enhanced status code that lacks text following the third number. Depending on the configuration of the server, this allows a remote attacker to cause a buffer over-read of only 1 byte, leading to...

OESA-2026-2291 postfix security update

Postfix is a Mail Transport Agent MTA. Security Fixes: 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.CVE-2026-43964...

Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : Postfix vulnerability (USN-8253-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8253-1 advisory. Kamil Frankowicz discovered that Postfix incorrectly handled certain enhanced status codes. A remote attacker could possibly use...

USN-8253-1 postfix vulnerability

Kamil Frankowicz discovered that Postfix incorrectly handled certain enhanced status codes. A remote attacker could possibly use this issue to cause Postfix to crash, resulting in a denial of service...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-43964

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 te...

MiracleLinux 9 : postfix-3.5.25-1.el9 (AXSA:2024-9252:01)

The remote MiracleLinux 9 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2024-9252:01 advisory. postfix: SMTP smuggling vulnerability CVE-2023-51764 Tenable has extracted the preceding description block directly from the MiracleLinux security advisory...

MiracleLinux 4 : postfix-2.6.6-2.1.AXS4 (AXSA:2011-159:01)

The remote MiracleLinux 4 host has a package installed that is affected by a vulnerability as referenced in the AXSA:2011-159:01 advisory. Postfix is a Mail Transport Agent MTA, supporting LDAP, SMTP AUTH SASL, TLS Security issues fixed with this release: CVE-2011-0411 The STARTTLS implementation...

MiracleLinux 3 : postfix-2.3.3-2.9AXS3 (AXSA:2008-88:01)

The remote MiracleLinux 3 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2008-88:01 advisory. Postfix is a Mail Transport Agent MTA, supporting LDAP, SMTP AUTH SASL, and TLS. CVE-2008-2936: Postfix before 2.3.15, 2.4 before 2.4.8, 2.5 before 2.5.4, and...