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SUSE dnsmasq Important Buffer Overflow Fix 2026-22454-1

suse
Calendar Grey July 3, 2026
Dist Suse Esm H88
Discover the update for dnsmasq addressing important security risks with actionable instructions for SUSE users.
An update that solves three vulnerabilities can now be installed.

Summary

## This update for dnsmasq fixes the following issues Update to 2.93: * CVE-2026-12725: heap buffer overflow in `log_query()` when logging unsupported DS/DNSKEY replies (bsc#1268764). ## 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 Micro 6.1 zypper in -t patch SUSE-SLE-Micro-6.1-604=1 ## Package List: * SUSE Linux Micro 6.1 (aarch64 ppc64le s390x x86_64) * dnsmasq-2.93-slfo.1.1_1.1 * dnsmasq-debuginfo-2.93-slfo.1.1_1.1

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE threat important dnsmasq

References

* bsc#1268764

Cross-

* CVE-2026-12725

* CVE-2026-2291

* CVE-2026-6507

CVSS scores:

* CVE-2026-12725 ( 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-2026-12725 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-12725 ( NVD ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-2291 ( SUSE ): 9.2

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

* CVE-2026-2291 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-2291 ( NVD ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

* CVE-2026-6507 ( SUSE ): 8.7

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

* CVE-2026-6507 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22454-1
Release Date: 2026-06-30T11:27:04Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE threat important dnsmasq

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