CVE-2026-47635: CWE-122: Heap-based Buffer Overflow in Microsoft Microsoft Office LTSC 2024
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-47635) involves a heap-based buffer overflow triggered by accessing a resource using an incompatible type (type confusion) in Microsoft Office LTSC 2024. Exploitation enables an unauthorized attacker to execute arbitrary code locally on the affected system. The CVSS v3.1 base score is 8.4, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this issue, and the affected version is 16.0.0.
Potential Impact
Successful exploitation allows local attackers to execute arbitrary code with high impact on confidentiality, integrity, and availability of the affected system. This could lead to full compromise of the affected Microsoft Office LTSC 2024 installation.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47635 for the patch and update instructions.
CVE-2026-47635: CWE-122: Heap-based Buffer Overflow in Microsoft Microsoft Office LTSC 2024
Description
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
CVSS v3.1
Score 8.4high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-47635) involves a heap-based buffer overflow triggered by accessing a resource using an incompatible type (type confusion) in Microsoft Office LTSC 2024. Exploitation enables an unauthorized attacker to execute arbitrary code locally on the affected system. The CVSS v3.1 base score is 8.4, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this issue, and the affected version is 16.0.0.
Potential Impact
Successful exploitation allows local attackers to execute arbitrary code with high impact on confidentiality, integrity, and availability of the affected system. This could lead to full compromise of the affected Microsoft Office LTSC 2024 installation.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47635 for the patch and update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-19T20:12:27.070Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47635","vendor":"Microsoft"}]
Threat ID: 6a284cf08dd33fbd85665055
Added to database: 6/9/2026, 5:27:12 PM
Last enriched: 6/9/2026, 5:56:15 PM
Last updated: 6/10/2026, 5:13:41 AM
Views: 2
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