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CVE-2020-3384

26
FAUCET Score

CVE-2020-3384 describes a command injection vulnerability in specific REST API endpoints of Cisco Data Center Network Manager (DCNM). This flaw allows an authenticated, remote attacker to inject arbitrary commands on the underlying operating system due to insufficient input validation. The vulnerability carries a CVSS score of 8.2 (HIGH), indicating a high severity risk where an attacker could achieve significant impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation (KEV listed as No) and no public exploit code (Metasploit, Nuclei, ExploitDB all show None), the vulnerability has garnered some community discussion and media coverage, suggesting awareness within the cybersecurity community.

Impacted Technologies

VendorProductVersion(s)CPE
< 11.4\(1\)CPE matchmatch criteria
cpe:2.3:a:cisco:data_center_network_manager:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.2HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.3
Impact Score
5.3
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.79%
Probability of exploitation in next 30 days
EPSS Percentile
52.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0079 is in the 68th percentile among its peer group of 890 CVEs.

Social Chatter

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

Media Mentions

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-dcnm-rest-inj-BCt8pwAJ
Vendor Advisory