High severity7.8NVD Advisory· Published Aug 11, 2026· Updated Aug 14, 2026
CVE-2026-64912
CVE-2026-64912
Description
Stack-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code locally.
Affected products
12cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x64:*+ 6 more
- cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x64:*
- cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x86:*
- cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x64:*
- cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x86:*
- cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x64:*
- cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x86:*
- (no CPE)
Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64912nvdVendor Advisory
News mentions
2- Patch Tuesday - August 2026Rapid7 Blog · Aug 11, 2026
- Microsoft Patch Tuesday Update August 2026 – 394 Vulnerabilities Fixed, Including 3 Zero-DaysCyber Security News · Aug 11, 2026