Heap-based Buffer Overflow in Microsoft Trace Data Helper by Microsoft

CVE-2026-121681

What is CVE-2026-121681?

A heap-based buffer overflow occurs in Microsoft Trace Data Helper, which could allow an authorized attacker to leverage this vulnerability for local privilege escalation. By exploiting this flaw, attackers can gain unauthorized access to sensitive system resources or execute arbitrary code with elevated permissions. It is critical for users and administrators to apply the necessary updates available from Microsoft to mitigate potential risks.

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