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EUVD-2026-47709

🗓️ 22 Jul 2026 14:13:08Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 4 Views

Attacker can trigger cache poisoning with a signature response having fewer labels than the zone if synth from dns security extensions is enabled.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-11721
22 Jul 202614:13
attackerkb
CVE
CVE-2026-11721
22 Jul 202614:13
cve
Cvelist
CVE-2026-11721 Cache poisoning possible with label count discrepancy, RRSIG, and wildcards
22 Jul 202614:13
cvelist
NVD
CVE-2026-11721
22 Jul 202615:16
nvd
Positive Technologies
PT-2026-63417
22 Jul 202600:00
ptsecurity
RedhatCVE
CVE-2026-11721
22 Jul 202615:42
redhatcve
[
  {
    "enisaIdVendor": [
      {
        "id": "5a77aa2c-3acd-3300-bf60-158b4cc5da0f",
        "vendor": {
          "name": "ISC"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "4973497a-c05b-3546-ba0f-0bb25545ccf3",
        "product": {
          "name": "BIND 9",
          "vendor": {
            "name": "ISC"
          }
        },
        "product_version": "9.21.0 ≤9.21.23"
      },
      {
        "id": "596ad25c-8405-3ddd-98ae-db3852b80f96",
        "product": {
          "name": "BIND 9",
          "vendor": {
            "name": "ISC"
          }
        },
        "product_version": "9.11.3-S1 ≤9.18.50-S1"
      },
      {
        "id": "9c3ac573-fed3-3907-9cba-d83b25c5cea8",
        "product": {
          "name": "BIND 9",
          "vendor": {
            "name": "ISC"
          }
        },
        "product_version": "9.11.0 ≤9.18.50"
      },
      {
        "id": "a71ac0f5-645d-33a6-814c-7e6653613fd0",
        "product": {
          "name": "BIND 9",
          "vendor": {
            "name": "ISC"
          }
        },
        "product_version": "9.20.9-S1 ≤9.20.24-S1"
      },
      {
        "id": "ac56a858-0734-3e9d-973d-d7b3bf7575d8",
        "product": {
          "name": "BIND 9",
          "vendor": {
            "name": "ISC"
          }
        },
        "product_version": "9.20.0 ≤9.20.24"
      }
    ]
  }
]

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22 Jul 2026 14:13Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.17.5
SSVC
4