CVE-2026-85875: CWE-125: Out-of-bounds Read in Microsoft Microsoft 365 Apps for Enterprise
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-85875) involves an out-of-bounds read (CWE-125) in Microsoft Office Excel, part of Microsoft 365 Apps for Enterprise. It allows unauthorized local information disclosure. The CVSS v3.1 vector indicates low attack complexity, no privileges required, and user interaction is needed. The confidentiality impact is high, but integrity and availability are not affected. Microsoft has published an official fix and manages remediation for this cloud-hosted service. The affected version is specifically 16.0.1.
Potential Impact
An attacker can cause an out-of-bounds read in Excel, leading to local disclosure of sensitive information. There is no impact on integrity or availability. The vulnerability requires local access and user interaction, limiting remote exploitation. No known exploits are currently active in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the update provided by Microsoft to remediate this vulnerability. Since this is a cloud service, Microsoft manages remediation server-side. Check the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85875 for the latest patch and update instructions.
CVE-2026-85875: CWE-125: Out-of-bounds Read in Microsoft Microsoft 365 Apps for Enterprise
Description
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-85875) involves an out-of-bounds read (CWE-125) in Microsoft Office Excel, part of Microsoft 365 Apps for Enterprise. It allows unauthorized local information disclosure. The CVSS v3.1 vector indicates low attack complexity, no privileges required, and user interaction is needed. The confidentiality impact is high, but integrity and availability are not affected. Microsoft has published an official fix and manages remediation for this cloud-hosted service. The affected version is specifically 16.0.1.
Potential Impact
An attacker can cause an out-of-bounds read in Excel, leading to local disclosure of sensitive information. There is no impact on integrity or availability. The vulnerability requires local access and user interaction, limiting remote exploitation. No known exploits are currently active in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the update provided by Microsoft to remediate this vulnerability. Since this is a cloud service, Microsoft manages remediation server-side. Check the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85875 for the latest patch and update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-04T18:18:19.325Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85875","vendor":"Microsoft"}]
Threat ID: 6aa0457cacd9273b49fbdf85
Added to database: 09/08/2026, 17:27:24 UTC
Last enriched: 09/08/2026, 17:37:54 UTC
Last updated: 09/09/2026, 00:25:09 UTC
Views: 9
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