Unauthenticated code execution via shared-resource race
Published Oct 13, 2026 · Updated Oct 13, 2026
A race condition in Microsoft Windows DHCP Server allows remote attackers to execute code over the network without authentication. The supplied source identifies improperly synchronized access to a shared resource, but the resource and faulty operation were not established by accessible public evidence. Exposure requires a reachable DHCP Server deployment; the role is optional, and the supplied source does not establish the resulting execution privileges.
Summary
What happened
A race condition in Microsoft Windows DHCP Server allows remote attackers to execute code over the network without authentication. The supplied source identifies improperly synchronized access to a shared resource, but the resource and faulty operation were not established by accessible public evidence. Exposure requires a reachable DHCP Server deployment; the role is optional, and the supplied source does not establish the resulting execution privileges.
The record
- CVE
- CVE-2026-69830
- Published
- Oct 13, 2026
- Updated
- Oct 13, 2026
- Vendor
- Microsoft Corporation
- Product
- Windows Server 2019
- Classifications
- Unavailable
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 13, 2026CVE publishedPublication date reported by the CVE source.
- Oct 13, 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=10.0.17763.0 <10.0.17763.9376
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
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.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
No sourced classifications are available.
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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