The server in CA ARCserve Backup r12.5, r15, and r16 on Windows does not properly process RPC requests, which allows remote attackers to execute arbitrary code or cause a denial of service via a crafted request.
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.