CVE-2026-45649: CWE-284: Improper Access Control in Microsoft Microsoft Excel for Android
Improper access control in Office for Android allows an unauthorized attacker to perform spoofing locally.
AI Analysis
Technical Summary
This vulnerability in Microsoft Excel for Android involves improper access control (CWE-284) that enables a local attacker without privileges to perform spoofing attacks. The CVSS vector indicates low attack complexity, no privileges required, and user interaction is needed. Confidentiality and integrity impacts are high, while availability is not affected. Microsoft has published an official fix for this vulnerability.
Potential Impact
An attacker with local access and requiring user interaction can exploit this vulnerability to spoof content or actions within Microsoft Excel for Android, potentially leading to high confidentiality and integrity impacts. There is no impact on availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the vendor's patch as provided in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45649 to remediate this vulnerability.
CVE-2026-45649: CWE-284: Improper Access Control in Microsoft Microsoft Excel for Android
Description
Improper access control in Office for Android allows an unauthorized attacker to perform spoofing locally.
CVSS v3.1
Score 7.1high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Microsoft Excel for Android involves improper access control (CWE-284) that enables a local attacker without privileges to perform spoofing attacks. The CVSS vector indicates low attack complexity, no privileges required, and user interaction is needed. Confidentiality and integrity impacts are high, while availability is not affected. Microsoft has published an official fix for this vulnerability.
Potential Impact
An attacker with local access and requiring user interaction can exploit this vulnerability to spoof content or actions within Microsoft Excel for Android, potentially leading to high confidentiality and integrity impacts. There is no impact on availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the vendor's patch as provided in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45649 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T20:33:35.157Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45649","vendor":"Microsoft"}]
Threat ID: 6a284ce98dd33fbd85664ef5
Added to database: 6/9/2026, 5:27:05 PM
Last enriched: 6/9/2026, 6:26:09 PM
Last updated: 6/10/2026, 6:06:12 AM
Views: 5
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