CVE-2026-58526: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
Use after free in Windows Storage allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-58526) involves a use-after-free condition in the Windows Storage component of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). An authorized local attacker can exploit this flaw to elevate their privileges on the affected system. The CVSS 3.1 base score is 7.0, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher-level access to the system. This can compromise system 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 1809 to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58526 for detailed patch information and installation instructions.
CVE-2026-58526: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
Description
Use after free in Windows Storage 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 (CVE-2026-58526) involves a use-after-free condition in the Windows Storage component of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). An authorized local attacker can exploit this flaw to elevate their privileges on the affected system. The CVSS 3.1 base score is 7.0, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher-level access to the system. This can compromise system 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 1809 to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58526 for detailed patch information and installation instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-01T04:33:41.869Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58526","vendor":"Microsoft"}]
Threat ID: 6a566f8368715ace43e6c031
Added to database: 07/14/2026, 17:18:59 UTC
Last enriched: 08/13/2026, 15:59:54 UTC
Last updated: 08/26/2026, 04:46:26 UTC
Views: 40
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.