All vulnerabilities
CVE-2026-70167

Windows Domain Name Service Remote Code Execution Vulnerability

Microsoft Windows Server 2022Operating systems
Open in ThreatlineRecord JSON
CVSS
8.8High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.85%Chance of exploitation activity in the next 30 days, higher than 57% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in10.0.20348.5761Also 10.0.26100.33650CVE List
Published13 Oct 2026Updated 23 Oct 2026CVE List

What fixes it

  • 10.0.20348.5761Windows Server 2022CVE List
  • 10.0.26100.33650Windows Server 2025CVE List
  • 10.0.26100.33650Windows Server 2025 (Server Core installation)CVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Vendor and government advisories 1

Vendors that say their products are affected, and agencies that issued alerts. Check each for the fixed release of the product you run.

Reports 1

1 outlet mention it. Reports are not confirmation; each links to its source.

Description

Access of resource using incompatible type ('type confusion') in DNS Server allows an authorized attacker to execute code over a network.

Text from CVE List

Affected versions 3

  • Windows Server 2022affected: 10.0.20348.0 before 10.0.20348.5761CVE List
  • Windows Server 2025affected: 10.0.26100.0 before 10.0.26100.33650CVE List
  • Windows Server 2025 (Server Core installation)affected: 10.0.26100.0 before 10.0.26100.33650CVE List

References 1