Memory leak in the Certificate Trust List (CTL) Provider service in Cisco Unified Communications Manager (CUCM) 5.x before 5.1(3) allows remote attackers to cause a denial of service (memory consumption and service interruption) via a series of malformed TCP packets, as demonstrated by TCPFUZZ, aka Bug ID CSCsj80609.

Cisco Unified Communications Manager (CUCM) 5.x before 5.1(2) and 6.x before 6.1(1) allows remote attackers to cause a denial of service (service interruption) via a SIP JOIN message with a malformed header, aka Bug ID CSCsi48115.

The SNMP Trap Agent service in Cisco Unified Communications Manager (CUCM) 4.1 before 4.1(3)SR6, 4.2 before 4.2(3)SR3, 4.3 before 4.3(2), 5.x before 5.1(3), and 6.x before 6.1(1) allows remote attackers to cause a denial of service (core dump and service restart) via a series of malformed UDP packets, as demonstrated by the IP Stack Integrity Checker (ISIC), aka Bug ID CSCsj24113.

The Disaster Recovery Framework (DRF) master server in Cisco Unified Communications products, including Unified Communications Manager (CUCM) 5.x and 6.x, Unified Presence 1.x and 6.x, Emergency Responder 2.x, and Mobility Manager 2.x, does not require authentication for requests received from the network, which allows remote attackers to execute arbitrary code via unspecified vectors.

SQL injection vulnerability in Cisco Unified CallManager/Communications Manager (CUCM) 5.0/5.1 before 5.1(3a) and 6.0/6.1 before 6.1(1a) allows remote authenticated users to execute arbitrary SQL commands via the key parameter to the (1) admin and (2) user interface pages.

Unspecified vulnerability in Cisco Unified Communications Manager (CUCM) 5.0, 5.1, and 6.0, and IOS 12.0 through 12.4, allows remote attackers to execute arbitrary code via a malformed SIP packet, aka CSCsi80102.

Cisco Unified Communications Manager (CUCM, formerly CallManager) and Unified Presence Server (CUPS) allow remote attackers to obtain sensitive information via unspecified vectors that reveal the SNMP community strings and configuration settings, aka (1) CSCsj20668 and (2) CSCsj25962.

Unspecified vulnerability in Cisco Unified Communications Manager (CUCM, formerly CallManager) and Unified Presence Server (CUPS) allows remote attackers to cause a denial of service (loss of cluster services) via unspecified vectors, aka (1) CSCsj09859 and (2) CSCsj19985.