CVE-2026-64920
high
Microsoft CVSS v3 Base Score
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.3%
Exploitation probability in 30 days
Top 77% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Published: August 11, 2026 (26 days ago)
Last Modified: August 14, 2026
Vendor: Microsoft
Source: NVD
Vulnerability Report
Generated by CyberWatcher
Description
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code locally.
CWE
CWE-122Affected Products
microsoft 365 appsmicrosoft accessmicrosoft office 2019microsoft office 2021microsoft office 2024