VMware vCenter Server 5.5 before U3e and 6.0 before U2a allows remote authenticated users to read arbitrary files via a (1) Log Browser, (2) Distributed Switch setup, or (3) Content Library XML document containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.

VMware vCenter Server 4.1 before Update 3 and 5.0 before Update 2, and vCSA 5.0 before Update 2, allows remote attackers to cause a denial of service (disk consumption) via vectors that trigger large log entries.

VMware vCenter Server 4.0 before Update 4b, 5.0 before Update 2, and 5.1 before 5.1.0b; VMware ESXi 3.5 through 5.1; and VMware ESX 3.5 through 4.1 do not properly implement the Network File Copy (NFC) protocol, which allows man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption) by modifying the client-server data stream.