CVE-2026-69529

Microsoft Office Access Remote Code Execution Vulnerability

State: Published
Severity: 8.8 High
Published: Sep 8, 2026
Updated: Oct 31, 2026
Reserved: Aug 3, 2026

Description

Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-122 Heap-based Buffer Overflow

Affected Products

Product	Versions
Microsoft 365 Apps for EnterpriseMicrosoft	16.0.1 to before 16.0.20326.20138Affected
Microsoft Access 2016Microsoft	16.0.0 to before 16.0.5569.1002Affected
Microsoft Access 2016 (32-bit edition)Microsoft	16.0.0 to before 16.0.5569.1002Affected
Microsoft Office 2016Microsoft	16.0.0 to before 16.0.5569.1002Affected
Microsoft Office 2019Microsoft	19.0.0 to before 16.0.10417.20207Affected
Microsoft Office LTSC 2021Microsoft	16.0.1 to before 16.0.14334.20906Affected
Microsoft Office LTSC 2024Microsoft	16.0.0 to before 16.0.17932.20976Affected

References

Microsoft Office Access Remote Code Execution Vulnerabilityvendor-advisorypatch

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