Bugzilla 2.14 before 2.14.2, and 2.16 before 2.16rc2, when configured to perform reverse DNS lookups, allows remote attackers to bypass IP restrictions by connecting from a system with a spoofed reverse DNS hostname.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This vulnerability has a 1.40% probability of being exploited in the next 30 days, ranking higher than 71% of all scored CVEs.