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CVE-2026-42004 EDNS options smuggling

🗓️ 25 Jun 2026 12:24:20Reported by OXType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

CVE-2026-42004: Crafted EDNS OPT records bypass filters and are rewritten with the Client Subnet.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-42004
25 Jun 202612:24
attackerkb
CVE
CVE-2026-42004
25 Jun 202612:24
cve
Debian CVE
CVE-2026-42004
25 Jun 202612:24
debiancve
EUVD
EUVD-2026-39351
25 Jun 202612:24
euvd
NVD
CVE-2026-42004
25 Jun 202613:16
nvd
Positive Technologies
PT-2026-52384
25 Jun 202600:00
ptsecurity
Vulnrichment
CVE-2026-42004 EDNS options smuggling
25 Jun 202612:24
vulnrichment
[
  {
    "vendor": "PowerDNS",
    "product": "DNSdist",
    "collectionURL": "https://repo.powerdns.com/",
    "packageName": "dnsdist",
    "repo": "https://github.com/PowerDNS/pdns",
    "modules": [
      "EDNS processing"
    ],
    "programFiles": [
      "dnsdist-ecs.cc"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "1.9.0",
        "lessThan": "1.9.15",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "2.0.0",
        "lessThan": "2.0.7",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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