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entry for Windows XP Hotfix - KB873339
. This security update for Windows XP addresses a vulnerability in HyperTerminal that could allow remote code execution.A remote code execution vulnerability exists in HyperTerminal because of a buffer overrun. An attacker could exploit the vulnerability by constructing a malicious HyperTerminal session file that could potentially allow remote code execution. An attacker could then persuade a user to open this file. This vulnerability could attempt to be exploited through a malicious Telnet URL if HyperTerminal has been set as the default Telnet client. An attacker who successfully exploited this vulnerability could take complete control of an affected system. However, user interaction is required to exploit this vulnerability.