Remote code execution via heap buffer overflow
Published Apr 11, 2023 · Updated Jan 23, 2025
Heap-based buffer overflow in Microsoft Windows DNS Server allows remote authenticated users to execute code through crafted DNS traffic. Microsoft identifies the DNS Server component and heap-overwrite class but has not disclosed the affected parser, field, or missing bounds check. Exploitation requires high privileges and network access to a Windows server running the DNS Server role.
Summary
What happened
Heap-based buffer overflow in Microsoft Windows DNS Server allows remote authenticated users to execute code through crafted DNS traffic. Microsoft identifies the DNS Server component and heap-overwrite class but has not disclosed the affected parser, field, or missing bounds check. Exploitation requires high privileges and network access to a Windows server running the DNS Server role.
The record
- CVE
- CVE-2023-28254
- Published
- Apr 11, 2023
- Updated
- Jan 23, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-122, T1210
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Apr 11, 2023CVE publishedPublication date reported by the CVE source.
- Jan 23, 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 <10.0.17763.4252
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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