<div class="container">
<h1>Security update for postfix</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:2489-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-06-22T12:16:27Z</td>
</tr>
<tr>
<th>Rating:</th>
<td>moderate</td>
</tr>
<tr>
<th>References:</th>
<td>
<ul>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1264062">bsc#1264062</a>
</li>
</ul>
</td>
</tr>
<tr>
<th>
Cross-References:
</th>
<td>
<ul>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-43964.html">CVE-2026-43964</a>
</li>
</ul>
</td>
</tr>
<tr>
<th>CVSS scores:</th>
<td>
<ul class="list-group">
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43964</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.2</span>
<span class="cvss-vector">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</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43964</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.9</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43964</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">3.7</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-43964</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">openSUSE Leap 15.3</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves one vulnerability can now be installed.</p>
<h2>Description:</h2>
<p>This update for postfix fixes the following issue</p>
<ul>
<li>CVE-2026-43964: buffer overread and process crash via an enhanced status code that lacks text after the third number
(bsc#1264062).</li>
</ul>
<h2>Patch Instructions:</h2>
<p>
To install this SUSE update use the SUSE recommended
installation methods like YaST online_update or "zypper patch".<br/>
Alternatively you can run the command listed for your product:
</p>
<ul class="list-group">
<li class="list-group-item">
openSUSE Leap 15.3
<br/>
<code>zypper in -t patch SUSE-2026-2489=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
openSUSE Leap 15.3 (aarch64 i586 ppc64le s390x x86_64)
<ul>
<li>postfix-postgresql-debuginfo-3.5.9-150300.5.20.1</li>
<li>postfix-postgresql-3.5.9-150300.5.20.1</li>
<li>postfix-mysql-debuginfo-3.5.9-150300.5.20.1</li>
<li>postfix-bdb-lmdb-debuginfo-3.5.9-150300.5.20.1</li>
<li>postfix-bdb-debuginfo-3.5.9-150300.5.20.1</li>
<li>postfix-devel-3.5.9-150300.5.20.1</li>
<li>postfix-debugsource-3.5.9-150300.5.20.1</li>
<li>postfix-ldap-3.5.9-150300.5.20.1</li>
<li>postfix-debuginfo-3.5.9-150300.5.20.1</li>
<li>postfix-bdb-3.5.9-150300.5.20.1</li>
<li>postfix-ldap-debuginfo-3.5.9-150300.5.20.1</li>
<li>postfix-3.5.9-150300.5.20.1</li>
<li>postfix-bdb-debugsource-3.5.9-150300.5.20.1</li>
<li>postfix-bdb-lmdb-3.5.9-150300.5.20.1</li>
<li>postfix-mysql-3.5.9-150300.5.20.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.3 (noarch)
<ul>
<li>postfix-doc-3.5.9-150300.5.20.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-43964.html">https://www.suse.com/security/cve/CVE-2026-43964.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1264062">https://bugzilla.suse.com/show_bug.cgi?id=1264062</a>
</li>
</ul>
</div>