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EUVD-2026-47664

🗓️ 22 Jul 2026 13:04:35Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 9 Views

Unbound DNSCrypt over transmission control may overflow reply buffer, causing denial of service.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-40691
22 Jul 202613:04
attackerkb
cbl_mariner
CBLMariner
CVE-2026-40691 affecting package unbound for versions less than 1.25.2-1
23 Jul 202620:32
cbl_mariner
cve
CVE
CVE-2026-40691
22 Jul 202613:04
cve
cvelist
Cvelist
CVE-2026-40691 Packet of death for DNSCrypt over TCP
22 Jul 202613:04
cvelist
debiancve
Debian CVE
CVE-2026-40691
22 Jul 202613:04
debiancve
freebsd
FreeBSD
unbound -- multiple vulnerabilities
22 Jul 202600:00
freebsd
fedora
Fedora
[SECURITY] Fedora 43 Update: unbound-1.25.2-1.fc43
31 Jul 202601:15
fedora
fedora
Fedora
[SECURITY] Fedora 44 Update: unbound-1.25.2-1.fc44
30 Jul 202601:18
fedora
nessus
Tenable Nessus
Fedora 43 : unbound (2026-3170ee6a1c)
31 Jul 202600:00
nessus
nessus
Tenable Nessus
Fedora 44 : unbound (2026-e495bd59ef)
30 Jul 202600:00
nessus
Rows per page
[
  {
    "enisaIdVendor": [
      {
        "id": "5a292305-3110-3705-b060-52e800e39292",
        "vendor": {
          "name": "NLnet Labs"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "16967c2e-e7b9-3627-a35f-5a26f1de78d7",
        "product": {
          "name": "Unbound",
          "vendor": {
            "name": "NLnet Labs"
          }
        },
        "product_version": "1.9.0 <1.25.2"
      }
    ]
  }
]

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22 Jul 2026 14:31Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.17.5
EPSS0.00293
SSVC
9