Use After Free Vulnerability in Microsoft Office Access
CVE-2025-26630

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Office 2019
Microsoft 365 Apps For Enterprise
Microsoft Office Ltsc 2021
Microsoft Office Ltsc 2024
Vendor
CVE Published:
11 March 2025

What is CVE-2025-26630?

A vulnerability exists in Microsoft Office Access due to improper handling of memory. This allows unauthorized attackers to exploit the flaw and execute arbitrary code on affected systems, potentially leading to data compromise or system manipulation, thereby emphasizing the importance of applying security updates from Microsoft promptly.

Affected Version(s)

Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1

Microsoft Access 2016 (32-bit edition) Unknown 16.0.0 < 16.0.5491.1001

Microsoft Access 2016 x64-based Systems 16.0.0 < 16.0.5491.1001

References

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

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-26630 : Use After Free Vulnerability in Microsoft Office Access