Cisco CallManager 5.1.1.3000-5 does not verify the Digest authentication header URI against the Request URI in SIP messages, which allows remote attackers to use sniffed Digest authentication credentials to call arbitrary telephone numbers or spoof caller ID (aka "toll fraud and authentication forward attack").
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 67.1%