CVE-2026-62751: CWE-190: Integer Overflow or Wraparound in Microsoft Windows 10 Version 21H2
Integer overflow or wraparound in Windows Projected File System allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves an integer overflow or wraparound in the Windows Projected File System, which can be exploited by an authorized local attacker to gain elevated privileges. The affected product is Microsoft Windows 10 Version 21H2, specifically build 10.0.19044.0. The vulnerability is tracked as CVE-2026-62751 and is classified under CWE-190 (Integer Overflow or Wraparound). Microsoft has released an official fix to remediate this issue. There are no known exploits in the wild at this time.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized local attacker to elevate their privileges, potentially leading to full control over the affected system. The CVSS v3.1 base score of 7.8 reflects high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 21H2 (build 10.0.19044.0) as soon as possible to remediate this vulnerability. Refer to the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62751 for detailed patch information and installation instructions.
CVE-2026-62751: CWE-190: Integer Overflow or Wraparound in Microsoft Windows 10 Version 21H2
Description
Integer overflow or wraparound in Windows Projected File System allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an integer overflow or wraparound in the Windows Projected File System, which can be exploited by an authorized local attacker to gain elevated privileges. The affected product is Microsoft Windows 10 Version 21H2, specifically build 10.0.19044.0. The vulnerability is tracked as CVE-2026-62751 and is classified under CWE-190 (Integer Overflow or Wraparound). Microsoft has released an official fix to remediate this issue. There are no known exploits in the wild at this time.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized local attacker to elevate their privileges, potentially leading to full control over the affected system. The CVSS v3.1 base score of 7.8 reflects high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 21H2 (build 10.0.19044.0) as soon as possible to remediate this vulnerability. Refer to the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62751 for detailed patch information and installation instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T21:01:21.824Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62751","vendor":"Microsoft"}]
Threat ID: 6a7b5813bf8831d539155bef
Added to database: 08/11/2026, 17:12:51 UTC
Last enriched: 08/11/2026, 21:57:17 UTC
Last updated: 08/12/2026, 00:12:10 UTC
Views: 3
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