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CVE-2026-50252

🗓️ 22 Jul 2026 13:08:54Reported by NLnet LabsType 
cve
 cve
🔗 web.nvd.nist.gov👁 6 Views

CVE-2026-50252: Unbound exposes per-thread port subsets with reuseport enabling DNS cache poisoning.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-50252
22 Jul 202613:08
attackerkb
Circl
CVE-2026-50252
22 Jul 202614:08
circl
Cvelist
CVE-2026-50252 Possible cache poisoning attack by mapping source port population per thread
22 Jul 202613:08
cvelist
Debian CVE
CVE-2026-50252
22 Jul 202613:08
debiancve
EUVD
EUVD-2026-47676
22 Jul 202613:08
euvd
NVD
CVE-2026-50252
22 Jul 202614:17
nvd
OSV
DEBIAN-CVE-2026-50252
22 Jul 202617:48
osv
Positive Technologies
PT-2026-63384
22 Jul 202600:00
ptsecurity
Vulnrichment
CVE-2026-50252 Possible cache poisoning attack by mapping source port population per thread
22 Jul 202613:08
vulnrichment
[
  {
    "vendor": "NLnet Labs",
    "product": "Unbound",
    "versions": [
      {
        "version": "1.4.22",
        "status": "affected",
        "lessThan": "1.25.2",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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22 Jul 2026 20:33Current
5.5Medium risk
Vulners AI Score5.5
CVSS 47.1
SSVC
6