Last Modified: Oct 16, 2026
Affected Product(s):
BIG-IP AFM
Fixed In:
17.5.1.10, 17.1.3.6
Opened: Jun 29, 2026 Severity: 2-Critical
IP Intelligence feedlist config with 0.0.0.0 as IP address & no netmask wrongly blocks all addresses
A wrong configuration with 0.0.0.0 as an IP address entry without a netmask can unexpectedly drop all traffic, even if such an entry was unintended. The consequences of dropping all traffic are not expected
Configuration with 0.0.0.0 as IP address entry without netmask
Ensure no invalid 0.0.0.0 IP address entry. If the intention is to block a single IP, explicitly specify the netmask <ip>,32,bl, or <ip>/32,,bl, or <valid ip(non 0.0.0.0)>,,bl,
None