CVE-2026-27907: CWE-191: Integer Underflow (Wrap or Wraparound) in Microsoft Windows 11 version 22H3
Integer underflow (wrap or wraparound) in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves an integer underflow (wrap or wraparound) condition in the Windows Storage Spaces Controller component of Windows 11 version 22H3 (build 10.0.22631.0). An authorized attacker with local access can exploit this flaw to elevate their privileges on the affected system. The issue is tracked as CWE-191. Microsoft has published an official security update to remediate the vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow a local attacker with authorized access to gain elevated privileges, potentially leading to full system compromise. The confidentiality, integrity, and availability of the affected system could be severely impacted.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft as soon as possible to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27907 for detailed patch information and installation instructions.
CVE-2026-27907: CWE-191: Integer Underflow (Wrap or Wraparound) in Microsoft Windows 11 version 22H3
Description
Integer underflow (wrap or wraparound) in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an integer underflow (wrap or wraparound) condition in the Windows Storage Spaces Controller component of Windows 11 version 22H3 (build 10.0.22631.0). An authorized attacker with local access can exploit this flaw to elevate their privileges on the affected system. The issue is tracked as CWE-191. Microsoft has published an official security update to remediate the vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow a local attacker with authorized access to gain elevated privileges, potentially leading to full system compromise. The confidentiality, integrity, and availability of the affected system could be severely impacted.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft as soon as possible to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27907 for detailed patch information and installation instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-24T21:35:49.686Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27907","vendor":"Microsoft"}]
Threat ID: 69de7a1d82d89c981fd6a72e
Added to database: 4/14/2026, 5:32:13 PM
Last enriched: 4/14/2026, 7:03:46 PM
Last updated: 4/15/2026, 6:08:42 AM
Views: 4
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