CVE-2026-102849 Details
Description
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
A heap-based buffer overflow vulnerability has been identified in Microsoft Office Access. This vulnerability allows an unauthorized attacker to execute code remotely over a network. The issue arises when a user opens a specially crafted file from the attacker, initiating the code execution.
Users can download the security update for this vulnerability through the Microsoft Update Catalog. For Microsoft 365 Apps for Enterprise, security update details can be found on the Microsoft 365 Apps Security Updates page. Instructions for downloading the security update for Microsoft Office LTSC 2021 and 2024 are also available on the Microsoft 365 Apps Security Updates page.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 13, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-102849 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-122 | Heap-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| microsoft 365 apps | All versions |
CPE
Remediation
| |
| microsoft office 2021 | All versions |
CPE
Remediation
| |
| microsoft office 2024 | All versions |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 15, 2026 | Initial Analysis | [email protected] |
| Oct 13, 2026 | CVE Modified | CISA-ADP |
| Oct 13, 2026 | New CVE Received | [email protected] |