CVE-2026-68810: CWE-822: Untrusted Pointer Dereference in Microsoft Microsoft 365 Apps for Enterprise
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-822 (Untrusted Pointer Dereference), exists in Microsoft Office Excel within Microsoft 365 Apps for Enterprise. It allows an attacker with local access to execute arbitrary code by exploiting improper handling of pointers. The vulnerability affects version 16.0.1 and has been assigned CVE-2026-68810. Microsoft has released an official fix and manages remediation for this cloud service. The CVSS 3.1 base score is 7.8, indicating high severity with impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation could lead to local code execution by an unauthorized attacker, potentially compromising confidentiality, integrity, and availability of the affected system. The vulnerability requires local access and user interaction, but the impact is high due to the ability to execute arbitrary code.
Mitigation Recommendations
An official fix is available from Microsoft. Since this is a cloud-hosted service, Microsoft manages remediation server-side. Users and administrators should ensure that their Microsoft 365 Apps for Enterprise installations are updated to the patched version as per the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68810.
CVE-2026-68810: CWE-822: Untrusted Pointer Dereference in Microsoft Microsoft 365 Apps for Enterprise
Description
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-822 (Untrusted Pointer Dereference), exists in Microsoft Office Excel within Microsoft 365 Apps for Enterprise. It allows an attacker with local access to execute arbitrary code by exploiting improper handling of pointers. The vulnerability affects version 16.0.1 and has been assigned CVE-2026-68810. Microsoft has released an official fix and manages remediation for this cloud service. The CVSS 3.1 base score is 7.8, indicating high severity with impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation could lead to local code execution by an unauthorized attacker, potentially compromising confidentiality, integrity, and availability of the affected system. The vulnerability requires local access and user interaction, but the impact is high due to the ability to execute arbitrary code.
Mitigation Recommendations
An official fix is available from Microsoft. Since this is a cloud-hosted service, Microsoft manages remediation server-side. Users and administrators should ensure that their Microsoft 365 Apps for Enterprise installations are updated to the patched version as per the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68810.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-31T16:41:44.243Z
- 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-2026-68810","vendor":"Microsoft"}]
Threat ID: 6a7b5838bf8831d5391565af
Added to database: 08/11/2026, 17:13:28 UTC
Last enriched: 08/11/2026, 17:58:15 UTC
Last updated: 08/12/2026, 00:12:10 UTC
Views: 4
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