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Δ / VULNERABILITY RECORD

CVE-2026-64912.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSHIGH / 7.8No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Aug 11, 2026

Disclosure summary

Stack-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code locally.

Source-reported weakness categories

CWE-121

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

Microsoft Security Updates (CVRF) · 2026-Aug

Open original source · Updated Aug 11, 2026

Microsoft Access Remote Code Execution Vulnerability

Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.

Microsoft maximum product score: 7.8

VendorProduct / associationVersion / bounds
Microsoft update guideMicrosoft Office 2019 for 32-bit editions (MSRC status code 3)
Microsoft update guideMicrosoft Office 2019 for 64-bit editions (MSRC status code 3)
Microsoft update guideMicrosoft 365 Apps for Enterprise for 32-bit Systems (MSRC status code 3)
Microsoft update guideMicrosoft 365 Apps for Enterprise for 64-bit Systems (MSRC status code 3)
Microsoft update guideMicrosoft Office LTSC 2021 for 64-bit editions (MSRC status code 3)
Microsoft update guideMicrosoft Office LTSC 2021 for 32-bit editions (MSRC status code 3)
Microsoft update guideMicrosoft Office LTSC 2024 for 32-bit editions (MSRC status code 3)
Microsoft update guideMicrosoft Office LTSC 2024 for 64-bit editions (MSRC status code 3)
Microsoft update guideMicrosoft Access 2016 (32-bit edition) (MSRC status code 3)
Microsoft update guideMicrosoft Access 2016 (64-bit edition) (MSRC status code 3)

Vendor remediation references

  • Click to Run · build https://aka.ms/OfficeSecurityReleases · product IDs 11573, 11574, 11762, 11763, 11952, 11953, 12420, 12421
  • Vendor guidance · product IDs 11573, 11574, 11762, 11763, 11952, 11953, 12420, 12421
  • 5002832 · build 16.0.5565.1000 · product IDs 10751, 10752
  • Vendor guidance · product IDs 10751, 10752

Original records & references

PUBLISHED 2026-08-11T03:00:00-04:00
MODIFIED 2026-08-11T03:00:00-04:00
INGESTED 2026-10-08T12:40:36-04:00