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CVE-2026-70071 Role: DNS Server Tampering Vulnerability

Type: advisorySources: Microsoft security updates

An authorized attacker could perform local tampering because DNS Server improperly verifies cryptographic signatures.

Products
DNS Server
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-70071
Confirmed fixed CVEs
Not specified
Updated in this feed
5 Nov 2026, 01:17 UTC · Revision 1

Source evidence

CVE-2026-70071 Role: DNS Server Tampering Vulnerability

official-microsoft-security-updates · Original source

Published 13 Oct 2026, 14:00 UTC

An authorized attacker could perform local tampering because DNS Server improperly verifies cryptographic signatures.

Improper verification of cryptographic signature in DNS Server allows an authorized attacker to perform tampering locally.

DNS Server

Fixed versions: Not specified

Complete source record
{
  "id": "e7949217ce827058b93a581962372e64494445d5b7f41a2bf460fab370b693b7",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70071",
  "method": "llm",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-70071 Role: DNS Server Tampering Vulnerability",
    "summary": "An authorized attacker could perform local tampering because DNS Server improperly verifies cryptographic signatures.",
    "evidence": "Improper verification of cryptographic signature in DNS Server allows an authorized attacker to perform tampering locally.",
    "products": [
      {
        "name": {
          "value": "DNS Server",
          "evidence": "Improper verification of cryptographic signature in DNS Server allows an authorized attacker to perform tampering locally."
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-70071",
        "evidence": "CVE-2026-70071 Role: DNS Server Tampering Vulnerability"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 25417,
  "published_at": "2026-10-13T14:00:00+00:00"
}