So far reported not vulnerable:
Merit 2.4.23C,
Livingston RADIUS 2.0.1 97/5/22
Livingstons RADIUS 2.01
Perl RADIUS module
MacRADIUS
ESVA Radius
Reported vulnerable:
Livingston 1.16 to 2.01 (Phillip R. Jaenke)
RadiusNT v2.x (Phillip R. Jaenke)
merit radius 2.4.23C (jbeley@puma.sirinet.net)
Aleph One / aleph1@dfw.net
http://underground.org/
KeyID 1024/948FD6B5
Fingerprint EE C9 E8 AA CB AF 09 61 8C 39 EA 47 A8 6A B8 01