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SUSE Postfix Moderate Buffer Overread Threat Fix 2026-2780-1

suse
Calendar Grey July 6, 2026
Dist Suse Esm H88
Update for SUSE Linux addresses moderate risk due to postfix buffer overread and crash. Install patch now.
An update that solves one vulnerability can now be installed.

Summary

## This update for postfix fixes the following issue * CVE-2026-43964: buffer overread and process crash via an enhanced status code that lacks text after the third number (bsc#1264062). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2780=1 ## Package List: * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch) * postfix-doc-3.2.10-3.33.1 * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64) * postfix-mysql-3.2.10-3.33.1 * postfix-devel-3.2.10-3.33.1 * postfix-debuginfo-3.2.10-3.33.1

Topics%20covered

Topics Covered

security advisory moderate SuSE postfix buffer overread process crash

References

* bsc#1264062

Cross-

* CVE-2026-43964

CVSS scores:

* CVE-2026-43964 ( SUSE ): 8.2

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2026-43964 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-43964 ( NVD ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

* CVE-2026-43964 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-43964 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:

* SUSE Linux Enterprise Server 12 SP5

* SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security

* SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2026-43964.html

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2780-1
Release Date: 2026-07-06T14:11:50Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate SuSE postfix buffer overread process crash

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