Upstream information

CVE-2026-12725 at MITRE

Description

A heap-based buffer overflow was found in dnsmasq. When DNSSEC validation and
query logging are both enabled, logging of DS or DNSKEY replies containing
unsupported algorithm or digest types can cause dnsmasq to write past the end
of an internal logging buffer. A remote attacker able to supply such a DNS
response may crash the dnsmasq process, resulting in denial of service.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having important severity.

CVSS v3 Scores
CVSS detail CNA (Red Hat) SUSE
Base Score 5.9 7.5
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network Network
Attack Complexity High Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3.1
CVSS v4 Scores
CVSS detail SUSE
Base Score 8.2
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
Attack Vector Network
Attack Complexity Low
Attack Requirements Present
Privileges Required None
User Interaction None
Vulnerable System Confidentiality Impact None
Vulnerable System Integrity Impact None
Vulnerable System Availability Impact High
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1268764 [NEW]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • dnsmasq >= 2.93-1.1
  • dnsmasq-utils >= 2.93-1.1
 Patchnames:
openSUSE-Tumbleweed-2026-11116

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Micro 5.3
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Micro 5.4
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Micro 5.5
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Module for Basesystem 15 SP7
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Server 15 SP7
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Desktop 15 SP7
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise High Performance Computing 15 SP7
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Server 12 SP5-LTSS
  • dnsmasq >= 2.93-18.30.1
SUSE Linux Enterprise Server 12 SP5-LTSS
  • dnsmasq >= 2.93-18.30.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Server 15 SP6-LTSS
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Server 15 SP6-LTSS
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5
  • dnsmasq >= 2.93-18.30.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Manager Proxy LTS 4.3
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Manager Retail Branch Server LTS 4.3
  • dnsmasq >= 2.93-150400.16.15.1
SUSE Manager Server LTS 4.3
  • dnsmasq >= 2.93-150400.16.15.1

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 dnsmasq In progress
SUSE Linux Enterprise High Performance Computing 15 SP7 dnsmasq In progress
SUSE Linux Enterprise Micro 5.3 dnsmasq In progress
SUSE Linux Enterprise Micro 5.4 dnsmasq In progress
SUSE Linux Enterprise Micro 5.5 dnsmasq In progress
SUSE Linux Enterprise Module for Basesystem 15 SP7 dnsmasq In progress
SUSE Linux Enterprise Server 15 SP7 dnsmasq In progress
SUSE Linux Enterprise Server 16.0 dnsmasq In progress
SUSE Linux Enterprise Server 16.1 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 dnsmasq In progress
SUSE Linux Enterprise Server for SAP applications 16.0 dnsmasq In progress
SUSE Linux Enterprise Server for SAP applications 16.1 dnsmasq Affected
SUSE Linux Micro 6.0 dnsmasq Affected
SUSE Linux Micro 6.1 dnsmasq Affected
SUSE Linux Micro 6.2 dnsmasq In progress
openSUSE Leap 16.0 dnsmasq Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP4 dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS dnsmasq In progress
SUSE Linux Enterprise High Performance Computing 15 SP5 dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS dnsmasq In progress
SUSE Linux Enterprise Module for Basesystem 15 SP4 dnsmasq Affected
SUSE Linux Enterprise Module for Basesystem 15 SP5 dnsmasq Affected
SUSE Linux Enterprise Module for Basesystem 15 SP6 dnsmasq Affected
SUSE Linux Enterprise Server 12 SP5 dnsmasq Affected
SUSE Linux Enterprise Server 12 SP5-LTSS dnsmasq In progress
SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security dnsmasq Affected
SUSE Linux Enterprise Server 15 SP4 dnsmasq Affected
SUSE Linux Enterprise Server 15 SP4-LTSS dnsmasq In progress
SUSE Linux Enterprise Server 15 SP5 dnsmasq Affected
SUSE Linux Enterprise Server 15 SP5-LTSS dnsmasq In progress
SUSE Linux Enterprise Server 15 SP6 dnsmasq Affected
SUSE Linux Enterprise Server 15 SP6-LTSS dnsmasq In progress
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 dnsmasq In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP6 dnsmasq In progress
SUSE Manager Proxy 4.3 dnsmasq Affected
SUSE Manager Proxy LTS 4.3 dnsmasq In progress
SUSE Manager Retail Branch Server 4.3 dnsmasq Affected
SUSE Manager Retail Branch Server LTS 4.3 dnsmasq In progress
SUSE Manager Server 4.3 dnsmasq Affected
SUSE Manager Server LTS 4.3 dnsmasq In progress
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 dnsmasq Affected
SUSE CaaS Platform 4.0 dnsmasq Affected
SUSE Enterprise Storage 6 dnsmasq Affected
SUSE Enterprise Storage 7 dnsmasq Affected
SUSE Enterprise Storage 7.1 dnsmasq Affected
SUSE Linux Enterprise Desktop 12 SP1 dnsmasq Affected
SUSE Linux Enterprise Desktop 12 SP2 dnsmasq Affected
SUSE Linux Enterprise Desktop 12 SP3 dnsmasq Affected
SUSE Linux Enterprise Desktop 12 SP4 dnsmasq Affected
SUSE Linux Enterprise Desktop 15 SP1 dnsmasq Affected
SUSE Linux Enterprise Desktop 15 SP2 dnsmasq Affected
SUSE Linux Enterprise Desktop 15 SP3 dnsmasq Affected
SUSE Linux Enterprise Desktop 15 SP4 dnsmasq Affected
SUSE Linux Enterprise Desktop 15 SP5 dnsmasq Affected
SUSE Linux Enterprise Desktop 15 SP6 dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP3 dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS dnsmasq Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS dnsmasq In progress
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS dnsmasq In progress
SUSE Linux Enterprise High Performance Computing 15 SP6 dnsmasq Affected
SUSE Linux Enterprise Micro 5.0 dnsmasq Affected
SUSE Linux Enterprise Micro 5.1 dnsmasq Affected
SUSE Linux Enterprise Micro 5.2 dnsmasq Affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 dnsmasq Affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 dnsmasq Affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 dnsmasq Affected
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT dnsmasq Affected
SUSE Linux Enterprise Real Time 15 SP2 dnsmasq Affected
SUSE Linux Enterprise Real Time 15 SP3 dnsmasq Affected
SUSE Linux Enterprise Real Time 15 SP4 dnsmasq Affected
SUSE Linux Enterprise Server 12 SP1 dnsmasq Affected
SUSE Linux Enterprise Server 12 SP1-LTSS dnsmasq Affected
SUSE Linux Enterprise Server 12 SP2 dnsmasq Affected
SUSE Linux Enterprise Server 12 SP2-BCL dnsmasq Affected
SUSE Linux Enterprise Server 12 SP2-ESPOS dnsmasq Affected
SUSE Linux Enterprise Server 12 SP2-LTSS dnsmasq Affected
SUSE Linux Enterprise Server 12 SP3 dnsmasq Affected
SUSE Linux Enterprise Server 12 SP3-BCL dnsmasq Affected
SUSE Linux Enterprise Server 12 SP3-ESPOS dnsmasq Affected
SUSE Linux Enterprise Server 12 SP3-LTSS dnsmasq Affected
SUSE Linux Enterprise Server 12 SP4 dnsmasq Affected
SUSE Linux Enterprise Server 12 SP4-ESPOS dnsmasq Affected
SUSE Linux Enterprise Server 12 SP4-LTSS dnsmasq Affected
SUSE Linux Enterprise Server 15 SP1 dnsmasq Affected
SUSE Linux Enterprise Server 15 SP1-BCL dnsmasq Affected
SUSE Linux Enterprise Server 15 SP1-LTSS dnsmasq Affected
SUSE Linux Enterprise Server 15 SP2 dnsmasq Affected
SUSE Linux Enterprise Server 15 SP2-BCL dnsmasq Affected
SUSE Linux Enterprise Server 15 SP2-LTSS dnsmasq Affected
SUSE Linux Enterprise Server 15 SP3 dnsmasq Affected
SUSE Linux Enterprise Server 15 SP3-BCL dnsmasq Affected
SUSE Linux Enterprise Server 15 SP3-LTSS dnsmasq Affected
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP1 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 dnsmasq Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 dnsmasq In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP5 dnsmasq In progress
SUSE Manager Proxy 4.0 dnsmasq Affected
SUSE Manager Proxy 4.1 dnsmasq Affected
SUSE Manager Proxy 4.2 dnsmasq Affected
SUSE Manager Retail Branch Server 4.0 dnsmasq Affected
SUSE Manager Retail Branch Server 4.1 dnsmasq Affected
SUSE Manager Retail Branch Server 4.2 dnsmasq Affected
SUSE Manager Server 4.0 dnsmasq Affected
SUSE Manager Server 4.1 dnsmasq Affected
SUSE Manager Server 4.2 dnsmasq Affected
SUSE OpenStack Cloud 6 dnsmasq Affected
SUSE OpenStack Cloud 6-LTSS dnsmasq Affected
SUSE OpenStack Cloud 7 dnsmasq Affected
SUSE OpenStack Cloud 8 dnsmasq Affected
SUSE OpenStack Cloud 9 dnsmasq Affected
SUSE OpenStack Cloud Crowbar 8 dnsmasq Affected
SUSE OpenStack Cloud Crowbar 9 dnsmasq Affected
openSUSE Leap 15.3 dnsmasq Affected
openSUSE Leap 15.4 dnsmasq Affected
openSUSE Leap 15.5 dnsmasq Affected
openSUSE Leap 15.6 dnsmasq Affected
openSUSE Leap Micro 5.2 dnsmasq Affected
openSUSE Leap Micro 5.3 dnsmasq Affected
openSUSE Leap Micro 5.4 dnsmasq Affected
openSUSE Leap Micro 5.5 dnsmasq Affected
Container Status
suse/sles/15.2/virt-launcher:0.38.1
suse/sles/15.3/virt-launcher:0.45.0
suse/sles/15.4/virt-launcher:0.49.0		 dnsmasqAffected

SUSE Timeline for this CVE

CVE page created: Mon Jun 22 18:54:28 2026
CVE page last modified: Fri Jun 26 11:26:04 2026