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CVE-2026-14586 Assertion in libngtcp2 when under pressure in high concurrency DNS-over-QUIC environments

🗓️ 22 Jul 2026 13:03:53Reported by NLnet LabsType 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

CVE-2026-14586: Unbound DoQ can crash under high concurrency from libngtcp2 monotonic time assertion.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-14586
22 Jul 202613:03
attackerkb
CVE
CVE-2026-14586
22 Jul 202613:03
cve
Debian CVE
CVE-2026-14586
22 Jul 202613:03
debiancve
EUVD
EUVD-2026-47662
22 Jul 202613:03
euvd
NVD
CVE-2026-14586
22 Jul 202614:17
nvd
OSV
DEBIAN-CVE-2026-14586
22 Jul 202617:48
osv
Positive Technologies
PT-2026-63367
22 Jul 202600:00
ptsecurity
Vulnrichment
CVE-2026-14586 Assertion in libngtcp2 when under pressure in high concurrency DNS-over-QUIC environments
22 Jul 202613:03
vulnrichment
[
  {
    "vendor": "NLnet Labs",
    "product": "Unbound",
    "versions": [
      {
        "version": "1.22.0",
        "status": "affected",
        "lessThan": "1.25.2",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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