CVE-2026-58542: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 11 Version 24H2
Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability is a heap-based buffer overflow (CWE-122) in Windows Media component of Windows 11 Version 24H2 (build 10.0.26100.0). It enables an unauthorized attacker with local access to execute arbitrary code, potentially leading to full system compromise. The CVSS v3.1 base score is 7.8 (high severity) with attack vector local, low attack complexity, no privileges required, user interaction required, and impacts confidentiality, integrity, and availability at a high level. Microsoft has released an official fix to address this issue.
Potential Impact
Successful exploitation allows local attackers to execute arbitrary code on affected systems, resulting in full compromise of confidentiality, integrity, and availability of the system. This could enable attackers to run malicious code with the privileges of the user.
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-2026-58542 to remediate this vulnerability.
CVE-2026-58542: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 11 Version 24H2
Description
Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code 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 (CWE-122) in Windows Media component of Windows 11 Version 24H2 (build 10.0.26100.0). It enables an unauthorized attacker with local access to execute arbitrary code, potentially leading to full system compromise. The CVSS v3.1 base score is 7.8 (high severity) with attack vector local, low attack complexity, no privileges required, user interaction required, and impacts confidentiality, integrity, and availability at a high level. Microsoft has released an official fix to address this issue.
Potential Impact
Successful exploitation allows local attackers to execute arbitrary code on affected systems, resulting in full compromise of confidentiality, integrity, and availability of the system. This could enable attackers to run malicious code with the privileges of the user.
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-2026-58542 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-01T04:33:41.870Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58542","vendor":"Microsoft"}]
Threat ID: 6a5676c268715ace43f0b191
Added to database: 07/14/2026, 17:49:54 UTC
Last enriched: 07/14/2026, 18:05:56 UTC
Last updated: 07/14/2026, 20:03:48 UTC
Views: 2
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