CVE-2004-0476

Buffer overflow in 3Com OfficeConnect Remote 812 ADSL Router 1.1.9.4 allows remote attackers to cause a denial of service (reboot or packet loss) via a long string containing Telnet escape characters to the Telnet port.

CVE-2001-0740

3COM OfficeConnect 812 and 840 ADSL Router 4.2, running OCR812 router software 1.1.9 and earlier, allows remote attackers to cause a denial of service via a long string containing a large number of "%s" strings, possibly triggering a format string vulnerability.

CVE-2003-0291

3com OfficeConnect Remote 812 ADSL Router 1.1.7 does not properly clear memory from DHCP responses, which allows remote attackers to identify the contents of previous HTTP requests by sniffing DHCP packets.