Vulnerability details
CVE-2026-70167
Microsoft Windows Server
Windows Domain Name Service Remote Code Execution Vulnerability
CVSS 3.1
8.8High
Official description
Access of resource using incompatible type ('type confusion') in DNS Server allows an authorized attacker to execute code over a network.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 3.1 | CVEProject cvelistV5 (CNA) (microsoft) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Microsoft | Windows Server 2022 | 10.0.20348.0 ≤ v < 10.0.20348.5761 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2025 | 10.0.26100.0 ≤ v < 10.0.26100.33650 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 ≤ v < 10.0.26100.33650 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70167 vendor-advisorypatch
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Details
- Published
- 2026-10-13
- Last updated
- 2026-10-31
- State
- Published
- Assigner (CNA)
- microsoft
Exploit prediction (EPSS)
0.98%
Probability of exploitation in 30 days
62.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-843Access of Resource Using Incompatible Type ('Type Confusion')
- CWE-822Untrusted Pointer Dereference