CVE-2018-18066

HIGH

Net-SNMP < 5.8 - Unauthenticated Denial of Service via Crafted UDP Packet

Title source: llm
STIX 2.1

Description

snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.

References (5)

Core 5
Core References
Exploit, Patch, Third Party Advisory x_refsource_misc
https://dumpco.re/blog/net-snmp-5.7.3-remote-dos
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20181107-0001/

Scores

CVSS v3 7.5
EPSS 0.0059
EPSS Percentile 69.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-476
Status published
Products (7)
net-snmp/net-snmp < 5.8
netapp/cloud_backup
netapp/data_ontap
netapp/e-series_santricity_os_controller 11.0 - 11.5
netapp/hyper_converged_infrastructure
netapp/solidfire_element_os
netapp/storagegrid_webscale
Published Oct 08, 2018
Tracked Since Feb 18, 2026