Untrusted Pointer Dereference in Microsoft Office by Microsoft
CVE-2026-26113

8.4HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft 365 Apps For Enterprise
Microsoft Office 2016
Microsoft Office 2019
Microsoft Office Ltsc 2021
Vendor
CVE Published:
10 March 2026

What is CVE-2026-26113?

The vulnerability in Microsoft Office arises from untrusted pointer dereference which could enable an unauthorized attacker to execute arbitrary code on a user's machine. This compromise could be exploited locally, elevating the risk to systems running vulnerable versions of Microsoft Office. Users are urged to apply security patches as recommended by Microsoft to mitigate the potential risks associated with this vulnerability.

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Deploy the Patch

Affected Version(s)

Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1

Microsoft Office 2016 32-bit Systems 16.0.0 < 16.0.5543.1000

Microsoft Office 2019 32-bit Systems 19.0.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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