Stack-based buffer overflow in lib/snmpagent.c in bsnmpd, as used in FreeBSD 8.3 through 10.0, allows remote attackers to cause a denial of service (daemon crash) and possibly execute arbitrary code via a crafted GETBULK PDU request.
http://www.securitytracker.com/id/1029616
http://www.securityfocus.com/bid/64967
http://www.freebsd.org/security/advisories/FreeBSD-SA-14:01.bsnmpd.asc
http://svnweb.freebsd.org/base?view=revision&%3Brevision=260636