CVE-2026-48685: Improper Handling of Length Parameter Inconsistency

FastNetMon Community Edition through 1.2.9 has out-of-bounds memory access because it incorrectly parses BGP path attributes with the extended length flag set. In src/bgpprotocol.hpp, the parserawbgpattribute function correctly identifies when extendedlengthbit is set and sets lengthoflengthfield...