<div class="container">
<h1>Security update for unbound</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:21913-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-05-28T15:43:53Z</td>
</tr>
<tr>
<th>Rating:</th>
<td>important</td>
</tr>
<tr>
<th>References:</th>
<td>
<ul>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265578">bsc#1265578</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265580">bsc#1265580</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265581">bsc#1265581</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265582">bsc#1265582</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265583">bsc#1265583</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265584">bsc#1265584</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265585">bsc#1265585</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265586">bsc#1265586</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265587">bsc#1265587</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265588">bsc#1265588</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265589">bsc#1265589</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-2026-32792.html">CVE-2026-32792</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-33278.html">CVE-2026-33278</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-40622.html">CVE-2026-40622</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-41292.html">CVE-2026-41292</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-42534.html">CVE-2026-42534</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-42923.html">CVE-2026-42923</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-42944.html">CVE-2026-42944</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-42959.html">CVE-2026-42959</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-42960.html">CVE-2026-42960</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-44390.html">CVE-2026-44390</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-44608.html">CVE-2026-44608</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-2026-32792</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-2026-32792</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">4.6</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/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Green</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-32792</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-33278</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.6</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-33278</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">9.1</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Red</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-33278</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">9.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-40622</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:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-40622</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.6</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-40622</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:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-41292</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-2026-41292</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.6</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Red</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-41292</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>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42534</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-2026-42534</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.9</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42534</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42923</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-2026-42923</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.9</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42923</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42944</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42944</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">8.7</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Red</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42944</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>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42959</span>
<span class="cvss-source">
(
SUSE
):
</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>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42959</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">8.7</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Red</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42959</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>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42960</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:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42960</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.7</span>
<span class="cvss-vector">CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42960</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">10.0</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-44390</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-2026-44390</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.9</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-44390</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-44608</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-2026-44608</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">4.6</span>
<span class="cvss-vector">CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-44608</span>
<span class="cvss-source">
(
NVD
):
</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>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">SUSE Linux Micro 6.0</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves 11 vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for unbound fixes the following issues</p>
<ul>
<li>CVE-2026-32792: Packet of death with DNSCrypt (bsc#1265583).</li>
<li>CVE-2026-33278: Possible remote code execution during DNSSEC validation (bsc#1265587).</li>
<li>CVE-2026-40622: "Ghost domain name" variant (bsc#1265581).</li>
<li>CVE-2026-41292: Parsing a long list of incoming EDNS options degrades performance (bsc#1265580).</li>
<li>CVE-2026-42534: Jostle logic bypass degrades resolution performance (bsc#1265585).</li>
<li>CVE-2026-42923: Degradation of service with unbounded NSEC3 hash calculations (bsc#1265589).</li>
<li>CVE-2026-42944: Heap overflow and crash with multiple nsid, cookie, padding EDNS options (bsc#1265578).</li>
<li>CVE-2026-42959: Crash during DNSSEC validation of malicious content (bsc#1265586).</li>
<li>CVE-2026-42960: Possible cache poisoning attack while following delegation (bsc#1265588).</li>
<li>CVE-2026-44390: Unbounded name compression in certain cases causes degradation of service (bsc#1265584).</li>
<li>CVE-2026-44608: Use after free and crash in RPZ code (bsc#1265582).</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">
SUSE Linux Micro 6.0
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-6.0-732=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Micro 6.0 (aarch64 s390x x86_64)
<ul>
<li>libunbound8-1.22.0-3.1</li>
<li>unbound-anchor-1.22.0-3.1</li>
<li>unbound-debugsource-1.22.0-3.1</li>
<li>unbound-anchor-debuginfo-1.22.0-3.1</li>
<li>libunbound8-debuginfo-1.22.0-3.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-32792.html">https://www.suse.com/security/cve/CVE-2026-32792.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-33278.html">https://www.suse.com/security/cve/CVE-2026-33278.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-40622.html">https://www.suse.com/security/cve/CVE-2026-40622.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-41292.html">https://www.suse.com/security/cve/CVE-2026-41292.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-42534.html">https://www.suse.com/security/cve/CVE-2026-42534.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-42923.html">https://www.suse.com/security/cve/CVE-2026-42923.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-42944.html">https://www.suse.com/security/cve/CVE-2026-42944.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-42959.html">https://www.suse.com/security/cve/CVE-2026-42959.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-42960.html">https://www.suse.com/security/cve/CVE-2026-42960.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-44390.html">https://www.suse.com/security/cve/CVE-2026-44390.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-44608.html">https://www.suse.com/security/cve/CVE-2026-44608.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265578">https://bugzilla.suse.com/show_bug.cgi?id=1265578</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265580">https://bugzilla.suse.com/show_bug.cgi?id=1265580</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265581">https://bugzilla.suse.com/show_bug.cgi?id=1265581</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265582">https://bugzilla.suse.com/show_bug.cgi?id=1265582</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265583">https://bugzilla.suse.com/show_bug.cgi?id=1265583</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265584">https://bugzilla.suse.com/show_bug.cgi?id=1265584</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265585">https://bugzilla.suse.com/show_bug.cgi?id=1265585</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265586">https://bugzilla.suse.com/show_bug.cgi?id=1265586</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265587">https://bugzilla.suse.com/show_bug.cgi?id=1265587</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265588">https://bugzilla.suse.com/show_bug.cgi?id=1265588</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265589">https://bugzilla.suse.com/show_bug.cgi?id=1265589</a>
</li>
</ul>
</div>