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unbound: Unbound: Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY

🗓️ 24 Sep 2026 10:23:29Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 4 Views

Remote RCE or DoS in Unbound DNSSEC validator via crafted DNSKEY record heap overflow.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.2aarch64python3-unbound1.24.2-7.el10_2.6python3-unbound-1.24.2-7.el10_2.6.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64lepython3-unbound1.24.2-7.el10_2.6python3-unbound-1.24.2-7.el10_2.6.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xpython3-unbound1.24.2-7.el10_2.6python3-unbound-1.24.2-7.el10_2.6.s390x.rpm
Red Hat Enterprise Linux10.2x86_64python3-unbound1.24.2-7.el10_2.6python3-unbound-1.24.2-7.el10_2.6.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64python3-unbound-debuginfo1.24.2-7.el10_2.6python3-unbound-debuginfo-1.24.2-7.el10_2.6.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64lepython3-unbound-debuginfo1.24.2-7.el10_2.6python3-unbound-debuginfo-1.24.2-7.el10_2.6.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xpython3-unbound-debuginfo1.24.2-7.el10_2.6python3-unbound-debuginfo-1.24.2-7.el10_2.6.s390x.rpm
Red Hat Enterprise Linux10.2x86_64python3-unbound-debuginfo1.24.2-7.el10_2.6python3-unbound-debuginfo-1.24.2-7.el10_2.6.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64unbound1.24.2-7.el10_2.6unbound-1.24.2-7.el10_2.6.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64leunbound1.24.2-7.el10_2.6unbound-1.24.2-7.el10_2.6.ppc64le.rpm
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24 Sep 2026 21:49Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.19.8
CVSS 410
EPSS0.00795
SSVC
4