Remote code execution via undisclosed heap overflow
Published Mar 14, 2023 · Updated Jan 1, 2025
Heap-based buffer overflow in Microsoft Windows DNS Server allows remote authenticated users with high privileges to execute code. Microsoft has not disclosed the affected DNS parsing locus or the operation that mishandles untrusted input. Exploitation requires network access and high privileges; successful attacks execute code in the DNS service context across affected full and Server Core installations.
Summary
What happened
Heap-based buffer overflow in Microsoft Windows DNS Server allows remote authenticated users with high privileges to execute code. Microsoft has not disclosed the affected DNS parsing locus or the operation that mishandles untrusted input. Exploitation requires network access and high privileges; successful attacks execute code in the DNS service context across affected full and Server Core installations.
The record
- CVE
- CVE-2023-23400
- Published
- Mar 14, 2023
- Updated
- Jan 1, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-122, T1210
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Mar 14, 2023CVE publishedPublication date reported by the CVE source.
- Jan 1, 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 <10.0.17763.4131
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
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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