Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-0309

25
FAUCET Score

CVE-2018-0309 describes a denial-of-service vulnerability in Cisco NX-OS on Nexus 3000 and 9000 Series Switches. An authenticated, remote attacker can exploit a flaw in a specific CLI command or SNMP MIB implementation to exhaust system memory. This can lead to the IP routing process restarting or a device reset, causing a high-impact denial of service. The vulnerability has a CVSS score of 7.7 (High) and is not currently listed as actively exploited, nor is there public exploit code available. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
7.0\(3\)i5\(2\)CPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:7.0\(3\)i5\(2\):*:*:*:*:*:*:*
7.0\(3\)i6\(1\)CPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:7.0\(3\)i6\(1\):*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.7HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.1
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.11%
Probability of exploitation in next 30 days
EPSS Percentile
79.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0211 is in the 78th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-n3k-n9k-clisnmp
Vendor Advisory
securitytracker.com / id/1041169
Third Party AdvisoryVDB Entry