CVE-2026-61359: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 11 version 23H2
Heap-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability is a heap-based buffer overflow in the Windows Storage component of Microsoft Windows 11 version 23H2 (build 10.0.22631.0). An authorized local attacker can exploit this flaw to elevate privileges on the affected system. The vulnerability is tracked as CWE-122 and has a CVSS v3.1 base score of 7.8, indicating high severity. Microsoft has released an official fix to address this issue.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate their privileges, potentially gaining higher-level access to the system. This can lead to full system compromise depending on the privileges obtained.
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-2026-61359 to remediate this vulnerability.
CVE-2026-61359: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 11 version 23H2
Description
Heap-based buffer overflow in Windows Storage 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 is a heap-based buffer overflow in the Windows Storage component of Microsoft Windows 11 version 23H2 (build 10.0.22631.0). An authorized local attacker can exploit this flaw to elevate privileges on the affected system. The vulnerability is tracked as CWE-122 and has a CVSS v3.1 base score of 7.8, indicating high severity. Microsoft has released an official fix to address this issue.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate their privileges, potentially gaining higher-level access to the system. This can lead to full system compromise depending on the privileges obtained.
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-2026-61359 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-08T17:30:25.175Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-61359","vendor":"Microsoft"}]
Threat ID: 6a7b5802bf8831d539155835
Added to database: 08/11/2026, 17:12:34 UTC
Last enriched: 08/11/2026, 22:56:26 UTC
Last updated: 08/12/2026, 00:12:10 UTC
Views: 2
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