Buffer overflow in the fetchsms function in the SMS handling module (libsms_getsms.c) in OpenSER 1.2.0 and earlier allows remote attackers to cause a denial of service (crash) via a crafted SMS message, triggering memory corruption when the "beginning" buffer is copied to the third (pdu) argument.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.01
EPSS Ranking 75.6%