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

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. 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

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