计算机网络系统安全漏洞的研究，从漏洞产生的原因出发进行研究,针对其中的一类漏洞提出了解决方案:即通过对客户端系统中的软件进行特殊的扫描加密方法,使攻击者不能绕过其访问控制,从而避免了访问验证错误引起的漏洞。最后,指出从漏洞产生的原因来解决系统安全漏洞问题必将是漏洞研究的发展趋势。-Computer network security vulnerabilities of the system, starting from the causes of vulnerability to study a class of vulnerabilities for which the proposed solutions: the client system by the special scanning software encryption method, so the attacker can not bypass its access control, thus avoiding the error caused by access validation vulnerability. Finally, that from the vulnerabilities to address the causes of security vulnerabilities will be the development trend of vulnerability research.