Adjacent-network service interruption via resource exhaustion
Published Aug 11, 2026 · Updated Aug 25, 2026
Uncontrolled resource consumption in Microsoft Windows DHCP Client allows remote attackers on an adjacent network to interrupt service. The client fails to bound consumption of an unspecified resource while processing adjacent-network DHCP traffic; Microsoft has not disclosed the resource, input field, or exhaustion path. No authentication or user interaction is required, and exploitation affects availability without reported confidentiality or integrity impact.
Summary
What happened
Uncontrolled resource consumption in Microsoft Windows DHCP Client allows remote attackers on an adjacent network to interrupt service. The client fails to bound consumption of an unspecified resource while processing adjacent-network DHCP traffic; Microsoft has not disclosed the resource, input field, or exhaustion path. No authentication or user interaction is required, and exploitation affects availability without reported confidentiality or integrity impact.
The record
- CVE
- CVE-2026-65785
- Published
- Aug 11, 2026
- Updated
- Aug 25, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2025 (Server Core installation)
- Classifications
- CWE-400, T1499
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 11, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.26100.0 <10.0.26100.33296
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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