Heap-based Buffer Overflow in Microsoft Office Access by Microsoft
CVE-2026-102850

8.8HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft 365 Apps For Enterprise
Microsoft Office Ltsc 2021
Microsoft Office Ltsc 2024
Vendor
CVE Published:
13 October 2026

What is CVE-2026-102850?

A heap-based buffer overflow exists in Microsoft Office Access, which can be exploited by unauthorized attackers to execute arbitrary code over a network. This vulnerability affects multiple versions of the product and could allow an attacker to take control of the vulnerable system if exploited successfully. Users and administrators are advised to apply the latest security patches and follow security best practices to mitigate potential risks.

Affected Version(s)

Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1

Microsoft Office LTSC 2021 32-bit Systems 16.0.1 < 16.0.14334.20974

Microsoft Office LTSC 2024 32-bit Systems 16.0.0 < 16.0.17932.21056

References

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

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.