CVE-2026-26132: CWE-416: Use After Free in Microsoft Windows 10 Version 21H2
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-26132) involves a use-after-free condition in the Windows Kernel on Windows 10 Version 21H2. An authorized local attacker can leverage this flaw to elevate privileges, potentially gaining higher system rights than intended. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. The vulnerability requires local access and low attack complexity, with no user interaction needed. Microsoft has released a patch to remediate this issue.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges on the affected Windows 10 system, potentially leading to full system compromise. The impact affects confidentiality, integrity, and availability of the system due to kernel-level privilege escalation.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 21H2 (build 10.0.19044.0) to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-26132: CWE-416: Use After Free in Microsoft Windows 10 Version 21H2
Description
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-26132) involves a use-after-free condition in the Windows Kernel on Windows 10 Version 21H2. An authorized local attacker can leverage this flaw to elevate privileges, potentially gaining higher system rights than intended. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. The vulnerability requires local access and low attack complexity, with no user interaction needed. Microsoft has released a patch to remediate this issue.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges on the affected Windows 10 system, potentially leading to full system compromise. The impact affects confidentiality, integrity, and availability of the system due to kernel-level privilege escalation.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 21H2 (build 10.0.19044.0) to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-11T16:24:51.133Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69b05632ea502d3aa87d6b5c
Added to database: 3/10/2026, 5:34:42 PM
Last enriched: 4/18/2026, 2:16:46 PM
Last updated: 4/28/2026, 7:28:17 AM
Views: 125
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