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CVE-2020-3382

31
FAUCET Score

CVE-2020-3382 is a critical vulnerability in the REST API of Cisco Data Center Network Manager (DCNM) that allows an unauthenticated, remote attacker to bypass authentication. This flaw stems from the use of a static encryption key shared across installations, enabling an attacker to craft a valid session token. The vulnerability carries a CVSS score of 9.8 (Critical), indicating a network-based attack with low complexity, requiring no user interaction, and resulting in complete compromise of confidentiality, integrity, and availability. A successful exploit grants administrative privileges, allowing arbitrary actions via the REST API. While there is no evidence of active exploitation (KEV: No) and no public exploit code (Metasploit, Nuclei, ExploitDB: None), the vulnerability has garnered significant community discussion and media coverage, suggesting high awareness and potential for future exploitation.

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: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.30%
Probability of exploitation in next 30 days
EPSS Percentile
81.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0230 is in the 71st percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 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-bypass-dyEejUMs
Vendor Advisory