Quick answers
- Is CVE-2026-70167 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-70167 being exploited in the wild.
- How severe is CVE-2026-70167?
- High severity, with a CVSS score of 8.8, published 13 October 2026.
- Which products and versions are affected?
- Microsoft DNS Server.
- Is there a fix for CVE-2026-70167?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-70167 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-70167?
- Check whether you run Microsoft DNS Server, Microsoft Windows Server 2022 or Microsoft Windows Server 2025. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A type confusion vulnerability in Microsoft DNS Server allows an authorized attacker to execute code over the network. The vulnerability stems from improper handling of incompatible data types in DNS processing logic. Exploitation requires network access and prior authorization, but once triggered grants remote code execution capabilities on the DNS service.
Affected products
- Microsoft DNS Server
Timeline
- 2026-10-13: disclosed