# CVE-2026-69510: Microsoft Windows DHCP Server stack-based buffer overflow

Source: https://junglewise.ai/threats/cve-2026-69510-microsoft-windows-dhcp-server-stack-based-buffer-overflow  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-08. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-69510 · Severity: high · CVSS 8.1 · Published 2026-09-08

Windows DHCP Server is a critical network service that assigns IP addresses to devices on corporate networks. A stack-based buffer overflow vulnerability allows an attacker to execute arbitrary code over the network without authentication, potentially compromising the entire network infrastructure and gaining control over IT systems.

Technologies: [Microsoft Windows DHCP Server](https://junglewise.ai/threats/technologies/windows-dhcp-server). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-69510 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-69510 being exploited in the wild.

**How severe is CVE-2026-69510?** High severity, with a CVSS score of 8.1, published 8 September 2026.

**Which products and versions are affected?** Microsoft Windows DHCP Server.

**Is there a fix for CVE-2026-69510?** 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-2026-69510 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2026-69510?** Check whether you run Microsoft Windows DHCP Server. 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 stack-based buffer overflow exists in Windows DHCP Server that can be triggered via a malformed network packet. The vulnerability requires no authentication and is exploitable over the network (CVSS vector indicates network-based attack). An attacker can craft a specially designed DHCP packet to overflow a stack buffer, overwrite return addresses, and achieve remote code execution with the privileges of the DHCP Server service. Microsoft has released patches to address this issue.

## Affected products

- Microsoft Windows DHCP Server

## Timeline

- 2026-09-08: disclosed
- 2026-09-08: advisory

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69510](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69510)

## Related threats

- [Microsoft Windows DHCP Server uncontrolled resource consumption](https://junglewise.ai/threats/cve-2026-96134-uncontrolled-resource-consumption-in-windows-dhcp-server-allows)
- [Windows DHCP Server time-of-check time-of-use race condition](https://junglewise.ai/threats/cve-2026-88216-time-of-check-time-of-use-toctou-race-condition-in-windows-dhcp)
- [Microsoft Windows DHCP Server use-after-free remote code execution](https://junglewise.ai/threats/cve-2026-72998-use-after-free-in-windows-dhcp-server-allows-an-unauthorized)
- [Windows DHCP Server out-of-bounds read](https://junglewise.ai/threats/cve-2026-119890-out-of-bounds-read-in-windows-dhcp-server-allows-an-authorized)
- [Microsoft Windows DHCP Server improper access control](https://junglewise.ai/threats/cve-2026-113773-improper-access-control-in-windows-dhcp-server-allows-an)