CVE-2026-45604: CWE-125: Out-of-bounds Read in Microsoft Windows 11 version 23H2
Out-of-bounds read in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-45604) involves an out-of-bounds read in the Windows Application Identity (AppID) Subsystem on Windows 11 version 23H2 (build 10.0.22631.0). It permits a local attacker with some level of authorization to read memory outside the intended bounds, potentially disclosing sensitive information. The vulnerability does not allow for privilege escalation, denial of service, or remote exploitation. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to read memory beyond allocated bounds in the AppID subsystem, leading to potential disclosure of sensitive information. There is no impact on system integrity or availability, and no remote exploitation vector is indicated.
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-2026-45604 to remediate this vulnerability.
CVE-2026-45604: CWE-125: Out-of-bounds Read in Microsoft Windows 11 version 23H2
Description
Out-of-bounds read in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information locally.
CVSS v3.1
Score 5.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-45604) involves an out-of-bounds read in the Windows Application Identity (AppID) Subsystem on Windows 11 version 23H2 (build 10.0.22631.0). It permits a local attacker with some level of authorization to read memory outside the intended bounds, potentially disclosing sensitive information. The vulnerability does not allow for privilege escalation, denial of service, or remote exploitation. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to read memory beyond allocated bounds in the AppID subsystem, leading to potential disclosure of sensitive information. There is no impact on system integrity or availability, and no remote exploitation vector is indicated.
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-2026-45604 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T19:55:45.731Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45604","vendor":"Microsoft"}]
Threat ID: 6a284ce48dd33fbd85664e67
Added to database: 6/9/2026, 5:27:00 PM
Last enriched: 6/9/2026, 10:11:44 PM
Last updated: 6/10/2026, 4:56:56 AM
Views: 2
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