Vulnerabilities
Microsoft Office Access Remote Code Execution Vulnerability (CVE-2026-105592)
A heap‑based buffer overflow in Microsoft Office Access allows an attacker to execute arbitrary code by opening a malicious Access database file over the network. The flaw can be triggered by unauthenticated remote users. Microsoft has released a patch; administrators should update immediately.
What happened
A heap‑based buffer overflow in Microsoft Office Access (CVE-2026-105592) permits an unauthenticated attacker to execute arbitrary code by opening a malicious Access database file over the network.
Impact
Unauthenticated remote users can gain code execution on the target system, potentially leading to full system compromise. The vulnerability affects all supported versions of Office Access that have not been patched.
Mitigation
- Apply the official security update from Microsoft as soon as possible.
- Restrict network access to Office Access files and enforce strict file‑type filtering.
- Disable or limit the use of macros and ActiveX controls in Access workbooks.
- Implement network segmentation and least‑privilege policies to contain potential exploitation.
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