Stack-based buffer overflow in the NSFComputeEvaluateExt function in Nnotes.dll in IBM Lotus Domino 8.5.2 allows remote authenticated users to execute arbitrary code via a long tHPRAgentName parameter in an fmHttpPostRequest OpenForm action to WebAdmin.nsf.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.