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CVE-2026-55990

🗓️ 22 Jul 2026 13:10:01Reported by NLnet LabsType 
cve
 cve
🔗 web.nvd.nist.gov👁 5 Views

Unbound DNSCrypt misconfiguration crashes on 68+ byte UDP with 0xdb garbage due to excess certs.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-55990
22 Jul 202613:10
attackerkb
Cvelist
CVE-2026-55990 Packet of death for a DNSCrypt misconfigured Unbound
22 Jul 202613:10
cvelist
EUVD
EUVD-2026-47682
22 Jul 202615:31
euvd
NVD
CVE-2026-55990
22 Jul 202614:17
nvd
Positive Technologies
PT-2026-63390
22 Jul 202600:00
ptsecurity
Vulnrichment
CVE-2026-55990 Packet of death for a DNSCrypt misconfigured Unbound
22 Jul 202613:10
vulnrichment
[
  {
    "vendor": "NLnet Labs",
    "product": "Unbound",
    "versions": [
      {
        "version": "1.7.0",
        "status": "affected",
        "lessThan": "1.25.2",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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22 Jul 2026 15:17Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.15.9
SSVC
5