CVE-2026-47635: CWE-122: Heap-based Buffer Overflow in Microsoft Microsoft Office LTSC 2024
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability involves a heap-based buffer overflow in Microsoft Office LTSC 2024 (version 16.0.0). It allows an attacker with local access and no privileges or user interaction to execute arbitrary code, impacting confidentiality, integrity, and availability. The vulnerability is tracked as CWE-122 and has been assigned CVE-2026-47635. Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code locally on the affected system, potentially leading to full compromise of the affected Microsoft Office installation and the underlying system. The CVSS vector indicates low attack complexity, no privileges required, and no user interaction needed, making it a significant local security risk.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47635 to remediate this vulnerability.
CVE-2026-47635: CWE-122: Heap-based Buffer Overflow in Microsoft Microsoft Office LTSC 2024
Description
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVSS v3.1
Score 8.4high
Affected software
Microsoft
Microsoft Office LTSC 2024
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap-based buffer overflow in Microsoft Office LTSC 2024 (version 16.0.0). It allows an attacker with local access and no privileges or user interaction to execute arbitrary code, impacting confidentiality, integrity, and availability. The vulnerability is tracked as CWE-122 and has been assigned CVE-2026-47635. Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code locally on the affected system, potentially leading to full compromise of the affected Microsoft Office installation and the underlying system. The CVSS vector indicates low attack complexity, no privileges required, and no user interaction needed, making it a significant local security risk.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47635 to remediate this vulnerability.
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: 06/09/2026, 17:27:12 UTC
Last enriched: 08/14/2026, 13:48:02 UTC
Last updated: 09/14/2026, 10:01:31 UTC
Views: 113
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