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unbound: Unbound: Denial of Service via improper validation of DNS-over-QUIC client length

🗓️ 22 Jul 2026 14:15:25Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 7 Views

Unbound memory DoS with DNS over QUIC due to improper client data length validation.

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Packages
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-32665
22 Jul 202613:04
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CVE-2026-32665 affecting package unbound for versions less than 1.25.2-1
23 Jul 202620:32
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CVE-2026-32665 Remote DNS-over-QUIC denial of service due to `quic-size` budget bypass
22 Jul 202613:04
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CVE-2026-32665
22 Jul 202613:04
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EUVD-2026-47663
22 Jul 202613:04
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freebsd
FreeBSD
unbound -- multiple vulnerabilities
22 Jul 202600:00
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fedora
Fedora
[SECURITY] Fedora 43 Update: unbound-1.25.2-1.fc43
31 Jul 202601:15
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fedora
Fedora
[SECURITY] Fedora 44 Update: unbound-1.25.2-1.fc44
30 Jul 202601:18
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nessus
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Fedora 43 : unbound (2026-3170ee6a1c)
31 Jul 202600:00
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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Hardened Imagesanyaarch64python3-unbound1.25.2-0.1.hum1python3-unbound-1.25.2-0.1.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64python3-unbound1.25.2-0.1.hum1python3-unbound-1.25.2-0.1.hum1.x86_64.rpm
Red Hat Hardened Imagesanynoarchunbound-munin1.25.2-0.1.hum1unbound-munin-1.25.2-0.1.hum1.noarch.rpm

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21 Aug 2026 20:01Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
EPSS0.00285
SSVC
7