BACnet Stack bacserv 0.9.1 and 0.8.5 is affected by: Buffer Overflow. The impact is: exploit was not explored. The component is: bacserv BVLC forwarded NPDU. bvlc_bdt_forward_npdu() calls bvlc_encode_forwarded_npdu() which copies the content from the request into a local in the bvlc_bdt_forward_npdu() stack frame and clobbers the canary. The attack vector is: A BACnet/IP device with BBMD enabled based on this library connected to IP network. The fixed version is: 0.8.6.