In FreeRDP less than or equal to 2.0.0, there is an out-of-bound read in ntlm_read_ntlm_v2_client_challenge that reads up to 28 bytes out-of-bound to an internal structure. This has been fixed in 2.1.0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 41.5%