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CVE-2018-18066

HIGH
7.5
CVSS Score
Published: October 8, 2018 at 06:00 PM UTC
Updated: June 17, 2026 at 01:46 AM UTC
7 products affected across 2 vendorsCloud BackupE Series Santricity OS ControllerData Ontap

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Severity
HIGH7.5
Exploit prediction
EPSS 4%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

.NET Snmp· .NET Snmp
95%
v < 5.8
Affected range stops below 5.8, so it looks safe — our inference, not a vendor statement
Cloud Backup· NetAppdrupal
95%
All versions
Data Ontap· NetApp
95%
All versions
E Series Santricity OS Controller· NetApp
95%
11.0 ≤ v ≤ 11.5
Hyper Converged Infrastructure· NetApp
95%
All versions
Solidfire Element OS· NetApp
95%
All versions
Storagegrid Webscale· NetApp
95%
All versions

References (5)

x_refsource_MISCExploitPatchThird Party Advisory
Source: [email protected]
https://dumpco.re/blog/net-snmp-5.7.3-remote-dos
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20181107-0001/
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://sourceforge.net/p/net-snmp/code/ci/7ffb8e25a0db851953155de91f0170e9bf8c457d/
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://sourceforge.net/p/net-snmp/code/ci/f23bcd3ac6ddee5d0a48f9703007ccc738914791/
x_refsource_MISC
Source: [email protected]
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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