# CVE-2026-97829: Windows DNS Server out-of-bounds read information disclosure

Source: https://junglewise.ai/threats/cve-2026-97829-out-of-bounds-read-in-dns-server-allows-an-authorized-attacker-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-97829 · Severity: medium · CVSS 6.5 · Published 2026-10-13

A flaw in Windows DNS Server, the service that translates domain names to IP addresses for network communication, allows an authorized attacker to read memory beyond intended boundaries and disclose sensitive information across the network. This could expose configuration data, cached credentials, or other server memory contents to an attacker with network access and valid credentials.

Technologies: [Microsoft Windows DNS Server](https://junglewise.ai/threats/technologies/windows-dns), [Microsoft Windows 10 1607](https://junglewise.ai/threats/technologies/windows-10-1607), [Microsoft Windows 10 1809](https://junglewise.ai/threats/technologies/windows-10-1809), [Microsoft Windows 10 21h2](https://junglewise.ai/threats/technologies/windows-10-21h2), [Microsoft Windows 10 22h2](https://junglewise.ai/threats/technologies/windows-10-22h2), [Microsoft Windows 11 23h2](https://junglewise.ai/threats/technologies/windows-11-23h2), [Microsoft Windows 11 24h2](https://junglewise.ai/threats/technologies/windows-11-24h2), [Microsoft Windows 11 25h2](https://junglewise.ai/threats/technologies/windows-11-25h2), [Microsoft Windows 11 26h1](https://junglewise.ai/threats/technologies/windows-11-26h1), [Microsoft Windows 11 26h2](https://junglewise.ai/threats/technologies/windows-11-26h2), [Microsoft Windows Server 2012](https://junglewise.ai/threats/technologies/windows-server-2012), [Microsoft Windows Server 2016](https://junglewise.ai/threats/technologies/windows-server-2016), [Microsoft Windows Server 2019](https://junglewise.ai/threats/technologies/windows-server-2019), [Microsoft Windows Server 2022](https://junglewise.ai/threats/technologies/windows-server-2022), [Microsoft Windows Server 2025](https://junglewise.ai/threats/technologies/windows-server-2025). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-97829 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-97829 being exploited in the wild.

**How severe is CVE-2026-97829?** Medium severity, with a CVSS score of 6.5, published 13 October 2026.

**Which products and versions are affected?** Microsoft Windows DNS Server <UNKNOWN>.

**Is there a fix for CVE-2026-97829?** 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-2026-97829 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2026-97829?** Check whether you run Microsoft Windows DNS Server, Microsoft Windows 10 1607, Microsoft Windows 10 1809 or one of the others listed at an affected version. 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 vulnerability in Windows DNS Server permits an authenticated network attacker to disclose information by reading memory outside allocated buffer boundaries. The vulnerability requires prior authentication and network access to the DNS service. Successful exploitation results in information disclosure but not code execution or denial of service.

## Affected products

- Microsoft Windows DNS Server <UNKNOWN>

## Timeline

- 2026-10-13: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97829](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97829)

## Related threats

- [Windows DNS Server out-of-bounds read](https://junglewise.ai/threats/cve-2026-97844-out-of-bounds-read-in-dns-server-allows-an-authorized-attacker-to)
- [Windows DNS Server out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-97843-out-of-bounds-read-in-dns-server-allows-an-authorized-attacker-to)
- [Windows DNS Server out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-97842-out-of-bounds-read-in-dns-server-allows-an-authorized-attacker-to)
- [Windows DNS Server out-of-bounds read](https://junglewise.ai/threats/cve-2026-97841-out-of-bounds-read-in-dns-server-allows-an-authorized-attacker-to)
- [DNS Server out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-97840-out-of-bounds-read-in-dns-server-allows-an-authorized-attacker-to)