SNMP Zero Length UDP Packet Remote DoS

medium Nessus Plugin ID 10266


The remote host is vulnerable to denial of service.


It was possible to crash either the remote host or the firewall in between us and the remote host by sending an UDP packet of null size going to port 161 (snmp)

This flaw may allow an attacker to shut down your network.


Contact your firewall vendor if it was the firewall which crashed, or filter incoming UDP traffic if the remote host crashed.

Plugin Details

Severity: Medium

ID: 10266

File Name: snmp_dos.nasl

Version: 1.25

Type: remote

Family: SNMP

Published: 2/24/2000

Updated: 3/6/2019

Configuration: Enable paranoid mode

Risk Information


Risk Factor: Medium

Score: 4.5


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

Vulnerability Information

Required KB Items: Settings/ParanoidReport

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 2/25/2000

Reference Information

CVE: CVE-2000-0221

BID: 1009