Unauthenticated memory disclosure via DHCP buffer over-read
Published Sep 12, 2023 · Updated Oct 30, 2025
Buffer over-read in Microsoft Windows Server DHCP Server service allows remote attackers to disclose memory contents through network requests. Microsoft identifies CWE-126 but has not disclosed the affected function, malformed DHCP field, or exact out-of-bounds read. The DHCP Server role must be installed and reachable; exploitation requires no authentication or user interaction and affects confidentiality only.
Summary
What happened
Buffer over-read in Microsoft Windows Server DHCP Server service allows remote attackers to disclose memory contents through network requests. Microsoft identifies CWE-126 but has not disclosed the affected function, malformed DHCP field, or exact out-of-bounds read. The DHCP Server role must be installed and reachable; exploitation requires no authentication or user interaction and affects confidentiality only.
The record
- CVE
- CVE-2023-36801
- Published
- Sep 12, 2023
- Updated
- Oct 30, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-126, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 12, 2023CVE publishedPublication date reported by the CVE source.
- Oct 30, 2025Record 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 <10.0.17763.4851
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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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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