CVE-2026-26109: 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 execute code locally.
AI Analysis
Technical Summary
This vulnerability involves an out-of-bounds read in Microsoft Office Excel component of Microsoft 365 Apps for Enterprise (version 16.0.1). An attacker exploiting this flaw could execute arbitrary code locally without user interaction or privileges. The CVSS 3.1 vector indicates local attack vector with low complexity, no privileges required, no user interaction, unchanged scope, and high impact on confidentiality, integrity, and availability. The vulnerability is tracked as CWE-125 (out-of-bounds read). A patch is available to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability allows an attacker to execute code locally on the affected system, potentially leading to full compromise of confidentiality, integrity, and availability of the impacted application and system. This could result in unauthorized access, data manipulation, or denial of service.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Microsoft 365 Apps for Enterprise version 16.0.1 promptly to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-26109: 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 execute code locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an out-of-bounds read in Microsoft Office Excel component of Microsoft 365 Apps for Enterprise (version 16.0.1). An attacker exploiting this flaw could execute arbitrary code locally without user interaction or privileges. The CVSS 3.1 vector indicates local attack vector with low complexity, no privileges required, no user interaction, unchanged scope, and high impact on confidentiality, integrity, and availability. The vulnerability is tracked as CWE-125 (out-of-bounds read). A patch is available to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability allows an attacker to execute code locally on the affected system, potentially leading to full compromise of confidentiality, integrity, and availability of the impacted application and system. This could result in unauthorized access, data manipulation, or denial of service.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Microsoft 365 Apps for Enterprise version 16.0.1 promptly to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-11T15:52:13.910Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69b0562fea502d3aa87d6afb
Added to database: 3/10/2026, 5:34:39 PM
Last enriched: 4/18/2026, 2:15:06 PM
Last updated: 4/28/2026, 7:29:12 AM
Views: 127
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