Cisco IOS OSPF Neighbor Announcement Overflow DoS (Bug ID CSCdp58462)

High Nessus Network Monitor Plugin ID 2203


The remote host is vulnerable to a Denial of Service (DoS) attack.


The Open Shortest Path First (OSPF) implementation in the remote Cisco IOS software versions is vulnerable to a denial of service if it receives a flood of neighbor announcements in which more than 255 hosts try to establish a neighbor relationship per interface. An attacker may use this flaw to prevent the router from working properly. This vulnerability is documented as Cisco Bug ID CSCdp58462.


Plugin Details

Severity: High

ID: 2203

Family: SNMP

Published: 2004/09/03

Modified: 2018/07/11

Nessus ID: 11283

Risk Information

Risk Factor: High


Base Score: 7.5

Temporal Score: 6.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:F/RL:W/RC:C


Base Score: 7.3

Temporal Score: 6.9


Temporal Vector: CVSS3#E:F/RL:W/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios

Reference Information

CVE: CVE-2003-0100

BID: 6895