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Juniper Networks IDP Systems and Firewalls Protect against New Microsoft Windows Vulnerabilities Disclosed Today

SUNNYVALE, Calif., December 14, 2004 - Juniper Networks, Inc. (Nasdaq: JNPR) announced zero-day coverage for the MS04-042 vulnerability announced by Microsoft Corporation today. The Juniper Networks intrusion detection and prevention (IDP) systems and firewall products protect against the MS04-042 Denial of Service Vulnerability and Remote Code Execution Vulnerability, which has been assigned an "Important" severity rating by Microsoft.

Additionally, Juniper Networks security products offers protection against other vulnerabilities announced today. The Juniper Networks IDP systems detect and protect against MS04 -043, a vulnerability in the HyperTerminal which could allow the attacker to gain complete control of an affected system through code execution.

Juniper Networks IDP systems, running the latest version of its IDP operating code*, can detect and prevent the Microsoft remote code execution vulnerability number MS04-045, a flaw that will either allow the hacker to take control of the affected system or result in a denial-of-service on Windows Servers.

For More Information

Additional information about Juniper Networks security solutions can be found at https://www.juniper.net/products/.

More detailed information about the vulnerabilities can be obtained from Juniper Networks at https://www.juniper.net/support/security/microsoft/ or Microsoft at http://www.microsoft.com/security/bulletins/default.mspx.

About Juniper Networks, Inc.

Juniper Networks transforms the business of networking by creating competitive advantage for our customers with superior networking and security solutions. Juniper Networks is dedicated to customers who derive strategic value from their networks, including global network operators, enterprises, government agencies and research and educational institutions. Juniper Networks' portfolio of networking and security solutions supports the complex scale, security and performance requirements of the world's most demanding mission critical networks. Additional information can be found at www.juniper.net.

* IDP operating code 3.0r3

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