CVE-2026-33096: CWE-125: Out-of-bounds Read in Microsoft Windows 11 version 22H3
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
AI Analysis
Technical Summary
This vulnerability (CWE-125) involves an out-of-bounds read in the Windows HTTP.sys driver on Windows 11 version 22H3. The flaw can be exploited remotely without privileges or user interaction to cause a denial of service condition, impacting system availability. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
Successful exploitation results in denial of service (DoS) by causing the affected system to crash or become unresponsive. There is no impact on confidentiality or integrity according to the CVSS vector. The vulnerability can be triggered remotely without authentication.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33096 to remediate this vulnerability.
CVE-2026-33096: CWE-125: Out-of-bounds Read in Microsoft Windows 11 version 22H3
Description
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
CVSS v3.1
Score 7.5high
Affected software
Microsoft
Windows 11 version 22H3
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2022
Microsoft
Windows Server 2022, 23H2 Edition (Server Core installation)
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-125) involves an out-of-bounds read in the Windows HTTP.sys driver on Windows 11 version 22H3. The flaw can be exploited remotely without privileges or user interaction to cause a denial of service condition, impacting system availability. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
Successful exploitation results in denial of service (DoS) by causing the affected system to crash or become unresponsive. There is no impact on confidentiality or integrity according to the CVSS vector. The vulnerability can be triggered remotely without authentication.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33096 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-17T20:15:23.718Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33096","vendor":"Microsoft"}]
Threat ID: 69de7a3882d89c981fd6cefc
Added to database: 04/14/2026, 17:32:40 UTC
Last enriched: 08/15/2026, 14:09:51 UTC
Last updated: 09/13/2026, 10:01:30 UTC
Views: 179
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