Recently, the The Cisco Product Security Incident Response Team (PSIRT) has published three important vulnerability advisories.
Multiple Vulnerabilities in Cisco Unified MeetingPlace
Multiple vulnerabilities exist in Cisco Unified MeetingPlace. This security advisory outlines the details of these vulnerabilities:

Insufficient validation of SQL commands
Unauthorized account creation
User and password enumeration in Cisco MeetingTime
Privilege escalation in Cisco MeetingTime

The The Cisco Product Security Incident Response Team (PSIRT) has published one important vulnerability advisory:  Multiple Cisco WebEx WRF Player Vulnerabilities.
Multiple buffer overflow vulnerabilities exist in the Cisco WebEx Recording Format (WRF) Player. In some cases, exploitation of the vulnerabilities could allow a remote attacker to execute arbitrary code on the system of a targeted [...]

On Octobert 14, 2009, the The Cisco Product Security Incident Response Team (PSIRT) has published one important vulnerability advisories: Cisco Unified Presence Denial of Service Vulnerabilities.
Cisco Unified Presence contains two denial of service (DoS) vulnerabilities that may cause an interruption to presence services. These vulnerabilities were discovered internally by Cisco, and there are no workarounds.
Vulnerable [...]

On September 23, 2009, the The Cisco Product Security Incident Response Team (PSIRT) has published 11 important vulnerability advisories.
Cisco Unified Communications Manager Express Vulnerability
Cisco IOS® devices that are configured for Cisco Unified Communications Manager Express (CME) and the Extension Mobility feature are vulnerable to a buffer overflow vulnerability. Successful exploitation of this vulnerability may result [...]

On September 8, 2009, the The Cisco Product Security Incident Response Team (PSIRT) has published one important vulnerability advisories: TCP State Manipulation Denial of Service Vulnerabilities in Multiple Cisco Products.
Multiple Cisco products are affected by denial of service (DoS) vulnerabilities that manipulate the state of Transmission Control Protocol (TCP) connections. By manipulating the state of [...]

In the last 2 weeks, three new security advisory has been published by PSIRT: Cisco IOS XR Software Border Gateway Protocol Vulnerabilities, Cisco Unified Communications Manager Denial of Service Vulnerabilities and Firewall Services Module Crafted ICMP Message Vulnerability.
1) Cisco IOS XR Software Border Gateway Protocol Vulnerabilities
Cisco IOS XR Software contains multiple vulnerabilities in the Border [...]

On July 29, 2009, the The Cisco Product Security Incident Response Team (PSIRT) has published 2 new vulnerability advisories.
1) Active Template Library (ATL) Vulnerability
Certain Cisco products that use Microsoft Active Template Libraries (ATL) and headers may be vulnerable to remote code execution. In some instances, the vulnerability may be exploited against Microsoft Internet Explorer to [...]

Multiple vulnerabilities exist in the Cisco Wireless LAN Controller (WLC) platforms. This security advisory outlines the details of the following vulnerabilities:

Malformed HTTP or HTTPS authentication response denial of service vulnerability
SSH connections denial of service vulnerability
Crafted HTTP or HTTPS request denial of service vulnerability
Crafted HTTP or HTTPS request unauthorized configuration modification vulnerability

Cisco Network Foundation Protection (NFP) is an umbrella strategy encompassing Cisco IOS Security features that provides the tools, technologies, and services that enable organizations to secure their network foundations. NFP helps to establish a methodical approach to protecting router planes, forming the foundation for continuous service delivery.
The router is typically segmented into three planes of [...]

Reported to Cisco by National Australia Bank’s Security Assurance team, on July 15, 2009 the PSIRT has published a new security advisory concerning to vulnerabilities in Unified Contact Center Express Administration Pages.
Cisco Unified Contact Center Express (Cisco Unified CCX) server contains both a directory traversal vulnerability and a script injection vulnerability in the administration pages [...]