Local code execution via heap overflow
Published Aug 11, 2026 · Updated Aug 25, 2026
Heap-based buffer overflow in Microsoft Office Access allows remote attackers to execute code via a crafted Access file. Microsoft has disclosed only that Access overruns a heap buffer while parsing attacker-controlled file content; no public advisory identifies the parser, record type, or routine involved. Exploitation requires a user to open the malicious file and runs with the current user's privileges; no public source retrieved for this record reports Preview Pane reachability or in-the-wild exploitation.
Summary
What happened
Heap-based buffer overflow in Microsoft Office Access allows remote attackers to execute code via a crafted Access file. Microsoft has disclosed only that Access overruns a heap buffer while parsing attacker-controlled file content; no public advisory identifies the parser, record type, or routine involved. Exploitation requires a user to open the malicious file and runs with the current user's privileges; no public source retrieved for this record reports Preview Pane reachability or in-the-wild exploitation.
The record
- CVE
- CVE-2026-64908
- Published
- Aug 11, 2026
- Updated
- Aug 25, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-122, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 11, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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