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No exploitation reportedFix available

CVE-2018-0330

No exploitation reported by the sources we read.

  • Published2018-06-20
  • Fixed in8.1.2 · 8.1\(1a\) · 7.3.2d1 · 7.3\(3\)n1\(1\) · 7.0\(3\)i3 · 7.0\(3\)i7\(1\)
  • WeaknessCWE-264 · CWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A vulnerability in the NX-API management application programming interface (API) in devices running, or based on, Cisco NX-OS Software could allow an authenticated, remote attacker to execute commands with elevated privileges. The vulnerability is due to a failure to properly validate certain parameters included within an NX-API request. An attacker that can successfully authenticate to the NX-API could submit a request designed to bypass NX-OS role assignment. A successful exploit could allow the attacker to execute commands with elevated privileges. This vulnerability affects the following if configured to use the NX-API feature: MDS 9000 Series Multilayer Switches, Nexus 2000 Series Switches, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode. Cisco Bug IDs: CSCvc73177, CSCve40903, CSCve40911.

Timeline

dates in UTC
  1. 2018-06-2021:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-0330?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-0330?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Cisco nx-osversion to verify
BranchAffectedFixed in
8.1≥ 8.1, < 8.1.28.1.2
8.1≥ 8.1, < 8.1\(1a\)8.1\(1a\)
7.3≥ 7.3, < 7.3.2d17.3.2d1
7.3≥ 7.3, < 7.3\(3\)n1\(1\)7.3\(3\)n1\(1\)
7.3≥ 6.0, < 7.3\(3\)n1\(1\)7.3\(3\)n1\(1\)
7.0< 7.0\(3\)i37.0\(3\)i3
7.0≥ 7.0\(3\)i4, < 7.0\(3\)i7\(1\)7.0\(3\)i7\(1\)
6.0= 6.0no fix published
7.0= 7.0no fix published
7.1= 7.1no fix published
7.2= 7.2no fix published
6.2= 6.2no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Cisco nx-os to 8.1.2 · 8.1\(1a\) · 7.3.2d1 · 7.3\(3\)n1\(1\) · 7.0\(3\)i3 · 7.0\(3\)i7\(1\)

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2024-11-29
  • OpenCVESSVC decisionnone—
  • NVDCVSS 3.08.8read 2026-10-23
  • NVDCVSS 2.06.5read 2026-10-23
  • CNAweakness (CWE)CWE-264read 2026-10-23
  • NVDweakness (CWE)CWE-78read 2026-10-23
  • FIRST EPSSEPSS score2.8 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2018-06-20
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2018-0330?

A vulnerability in the NX-API management application programming interface (API) in devices running, or based on, Cisco NX-OS Software could allow an authenticated, remote attacker to execute commands with elevated privileges. The vulnerability is due to a failure to properly validate certain parameters included within an NX-API request. An attacker that can successfully authenticate to the NX-API could submit a request designed to bypass NX-OS role assignment. A successful exploit could allow the attacker to execute commands with elevated privileges. This vulnerability affects the following if configured to use the NX-API feature: MDS 9000 Series Multilayer Switches, Nexus 2000 Series Switches, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode. Cisco Bug IDs: CSCvc73177, CSCve40903, CSCve40911.

Is CVE-2018-0330 actively exploited?

Active exploitation of CVE-2018-0330 has not been confirmed. Its EPSS score was 2.8% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-0330?

CVE-2018-0330 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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