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EUVD-2026-47676

🗓️ 22 Jul 2026 13:08:54Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 4 Views

Unbound versions 1.4.22–1.25.1 with so reuseport enabled allows port to thread mapping, 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
CVE
CVE-2026-50252
22 Jul 202613:08
cve
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
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
[
  {
    "enisaIdVendor": [
      {
        "id": "ac9cf3d4-9d5e-3c99-9156-9bf0ed19f5e7",
        "vendor": {
          "name": "NLnet Labs"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "b6d53bae-a970-391c-88d3-d4c1183de641",
        "product": {
          "name": "Unbound",
          "vendor": {
            "name": "NLnet Labs"
          }
        },
        "product_version": "1.4.22 <1.25.2"
      }
    ]
  }
]

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22 Jul 2026 14:18Current
5.4Medium risk
Vulners AI Score5.4
CVSS 47.1
SSVC
4