Factory is not affected. In SLE the package is only maintained in SUSE_SLE-11_Update and shipped in all the SLE-11 codestreams. For Leap, the versions affected are: * perl-Net-Netmask.openSUSE_Backports_SLE-15-SP4_Update * perl-Net-Netmask.openSUSE_Backports_SLE-15-SP5_Update