CVE-2026-119970: Windows DNS out-of-bounds read information disclosure

CVE-2026-119970 · Severity: medium · CVSS 4.9 · Published 2026-11-10

Windows DNS, which resolves domain names to IP addresses on Microsoft systems, contains an out-of-bounds read vulnerability that allows an authorized attacker to access sensitive information over the network. An attacker with appropriate credentials could read memory contents that should not be accessible, potentially exposing confidential data.

Technologies: Microsoft Windows DNS. Vendors: Microsoft.

Quick answers

Is CVE-2026-119970 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-119970 being exploited in the wild.
How severe is CVE-2026-119970?
Medium severity, with a CVSS score of 4.9, published 10 November 2026.
Which products and versions are affected?
Microsoft Windows DNS.
Is there a fix for CVE-2026-119970?
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-2026-119970 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2026-119970?
Check whether you run Microsoft Windows DNS. 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

An out-of-bounds read flaw in Windows DNS allows an authenticated attacker to disclose information via network access. The vulnerability requires the attacker to have authorization and network connectivity to the DNS service. A fix is available from Microsoft.

Affected products

  • Microsoft Windows DNS

Timeline

  • 2026-11-10: disclosed

References

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