CVE-2026-62780: CWE-416: Use After Free in Microsoft Windows 11 version 23H2
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the Windows Kernel component of Microsoft Windows 11 version 23H2 (build 10.0.22631.0). Exploitation requires local access with authorized privileges and can lead to privilege escalation. The CVSS vector indicates that the attack complexity is high, privileges required are low, and no user interaction is needed. Confidentiality, integrity, and availability impacts are all high. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges, potentially gaining higher-level access to the system. This can compromise system confidentiality, integrity, and availability as indicated by the CVSS metrics.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the security update provided by Microsoft as soon as possible to remediate this issue. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62780 for detailed patch information and deployment guidance.
CVE-2026-62780: CWE-416: Use After Free in Microsoft Windows 11 version 23H2
Description
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the Windows Kernel component of Microsoft Windows 11 version 23H2 (build 10.0.22631.0). Exploitation requires local access with authorized privileges and can lead to privilege escalation. The CVSS vector indicates that the attack complexity is high, privileges required are low, and no user interaction is needed. Confidentiality, integrity, and availability impacts are all high. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges, potentially gaining higher-level access to the system. This can compromise system confidentiality, integrity, and availability as indicated by the CVSS metrics.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the security update provided by Microsoft as soon as possible to remediate this issue. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62780 for detailed patch information and deployment guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T21:04:04.257Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62780","vendor":"Microsoft"}]
Threat ID: 6a7b5816bf8831d539155f16
Added to database: 08/11/2026, 17:12:54 UTC
Last enriched: 08/11/2026, 21:42:48 UTC
Last updated: 08/12/2026, 03:21:12 UTC
Views: 4
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