Directory traversal vulnerability in the attachment service in the Voice Message Web Service (aka VMWS or Cisco Unity Web Service) in Cisco Unity Connection allows remote authenticated users to create files, and consequently execute arbitrary JSP code, via a crafted pathname for a file that is not a valid audio file, aka Bug ID CSCuj22948.

Memory leak in Cisco Unity Connection 9.x allows remote attackers to cause a denial of service (memory consumption and process crash) by sending many TCP requests, aka Bug ID CSCud59736.

Cisco Unity Connection (UC) 8.6, 9.0, and 9.5 allows remote attackers to cause a denial of service (CPU consumption) via malformed UDP packets, aka Bug ID CSCtz76269.

Cisco Unity Connection (UC) 7.1, 8.0, and 8.5 allows remote authenticated users to cause a denial of service (resource consumption and administration outage) via extended use of the product, aka Bug ID CSCtd79132.

Cisco Unity Connection before 7.1.3b(Su2) allows remote authenticated users to change the administrative password by leveraging the Help Desk Administrator role, aka Bug ID CSCtd45141.

Cisco Unity Connection before 7.1.5b(Su5), 8.0 and 8.5 before 8.5.1(Su3), and 8.6 before 8.6.2 allows remote attackers to cause a denial of service (services crash) via a series of crafted TCP segments, aka Bug ID CSCtq67899.

Multiple TCP implementations with Protection Against Wrapped Sequence Numbers (PAWS) with the timestamps option enabled allow remote attackers to cause a denial of service (connection loss) via a spoofed packet with a large timer value, which causes the host to discard later packets because they appear to be too old.