CVE-2026-42831: CWE-122: Heap-based Buffer Overflow in Microsoft Microsoft Office for Android
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-42831) involves a heap-based buffer overflow in Microsoft Office for Android (version 16.0.1). An attacker can leverage this flaw to execute arbitrary code locally without requiring privileges, though user interaction is needed. The vulnerability is classified under CWE-122 and has a CVSS 3.1 score of 7.8, indicating high impact on confidentiality, integrity, and availability. 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 on the affected Android device with user interaction, potentially leading to full compromise of the Microsoft Office application and access to sensitive data. The impact includes high confidentiality, integrity, and availability consequences as per the CVSS vector.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the provided patch for Microsoft Office for Android version 16.0.1 as soon as possible to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42831 for detailed update instructions.
CVE-2026-42831: CWE-122: Heap-based Buffer Overflow in Microsoft Microsoft Office for Android
Description
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-42831) involves a heap-based buffer overflow in Microsoft Office for Android (version 16.0.1). An attacker can leverage this flaw to execute arbitrary code locally without requiring privileges, though user interaction is needed. The vulnerability is classified under CWE-122 and has a CVSS 3.1 score of 7.8, indicating high impact on confidentiality, integrity, and availability. 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 on the affected Android device with user interaction, potentially leading to full compromise of the Microsoft Office application and access to sensitive data. The impact includes high confidentiality, integrity, and availability consequences as per the CVSS vector.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the provided patch for Microsoft Office for Android version 16.0.1 as soon as possible to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42831 for detailed update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-30T14:51:12.703Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42831","vendor":"Microsoft"}]
Threat ID: 6a036564cbff5d861008cc8a
Added to database: 5/12/2026, 5:37:40 PM
Last enriched: 5/12/2026, 6:07:14 PM
Last updated: 5/13/2026, 4:48:45 AM
Views: 2
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