Unauthenticated service interruption
Published May 31, 2023 · Updated Jan 2, 2025
Denial of service in HTTP.sys in Microsoft Windows Server releases allows remote attackers to interrupt service via network requests. Microsoft has not disclosed the malformed request characteristic or the HTTP.sys operation that mishandles it. No privileges or user interaction are required, and successful exploitation affects availability without reported data exposure or modification.
Summary
What happened
Denial of service in HTTP.sys in Microsoft Windows Server releases allows remote attackers to interrupt service via network requests. Microsoft has not disclosed the malformed request characteristic or the HTTP.sys operation that mishandles it. No privileges or user interaction are required, and successful exploitation affects availability without reported data exposure or modification.
The record
- CVE
- CVE-2022-35748
- Published
- May 31, 2023
- Updated
- Jan 2, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 31, 2023CVE publishedPublication date reported by the CVE source.
- Jan 2, 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 <10.0.17763.3287
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.
Weakness, pattern, technique
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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