The SILC_SERVER_CMD_FUNC function in apps/silcd/command.c in silc-server 1.0.2 allows remote attackers to cause a denial of service (NULL dereference and daemon crash) via a request without a cipher algorithm and an invalid HMAC algorithm.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.126
EPSS Ranking 93.7%