Heap-Based Buffer Overflow in Microsoft Office by Microsoft

CVE-2026-42831

What is CVE-2026-42831?

A heap-based buffer overflow vulnerability exists in Microsoft Office that enables an unauthorized attacker to execute arbitrary code locally. This flaw could be exploited to compromise the system, allowing malicious actors to gain control and execute further malicious activities. Users are encouraged to apply the latest security updates to mitigate potential risks.

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