CVE-2026-50420: CWE-125: Out-of-bounds Read in Microsoft Windows 11 Version 24H2
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50420) involves an out-of-bounds read in the Windows HTTP.sys driver on Windows 11 Version 24H2 (build 10.0.26100.0). It allows an unauthorized attacker with local access to read memory beyond intended boundaries, potentially disclosing sensitive information. The issue is classified under CWE-125 (Out-of-bounds Read). Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An unauthorized local attacker can exploit this vulnerability to read memory outside the intended buffer boundaries, leading to disclosure of sensitive information. There is no impact on integrity or availability. The attack complexity is low, and no privileges or user interaction are required.
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-2026-50420 to remediate this vulnerability.
CVE-2026-50420: CWE-125: Out-of-bounds Read in Microsoft Windows 11 Version 24H2
Description
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to disclose information locally.
CVSS v3.1
Score 6.2medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50420) involves an out-of-bounds read in the Windows HTTP.sys driver on Windows 11 Version 24H2 (build 10.0.26100.0). It allows an unauthorized attacker with local access to read memory beyond intended boundaries, potentially disclosing sensitive information. The issue is classified under CWE-125 (Out-of-bounds Read). Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An unauthorized local attacker can exploit this vulnerability to read memory outside the intended buffer boundaries, leading to disclosure of sensitive information. There is no impact on integrity or availability. The attack complexity is low, and no privileges or user interaction are required.
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-2026-50420 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:56:53.259Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50420","vendor":"Microsoft"}]
Threat ID: 6a56769b68715ace43f0914e
Added to database: 07/14/2026, 17:49:15 UTC
Last enriched: 08/13/2026, 14:51:40 UTC
Last updated: 08/26/2026, 22:52:11 UTC
Views: 96
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