Quick answers
- Is CVE-2026-70127 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-70127 being exploited in the wild.
- How severe is CVE-2026-70127?
- High severity, with a CVSS score of 8.1, published 13 October 2026.
- Which products and versions are affected?
- Microsoft DNS Server.
- Is there a fix for CVE-2026-70127?
- 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-2026-70127 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-70127?
- Check whether you run Microsoft DNS Server, Microsoft Windows 10 1607, Microsoft Windows 10 1809 or one of the others listed. 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 use-after-free memory corruption vulnerability exists in the DNS Server component, exploitable over the network without authentication. The vulnerability allows an unauthenticated remote attacker to execute arbitrary code with system privileges by triggering improper memory management in DNS packet processing.
Affected products
- Microsoft DNS Server
Timeline
- 2026-10-13: disclosed