← Vulnerability feed

Vulnerability record · CVE-2020-3520 · published 26 August 2020

CVE-2020-3520: Cisco data center network manager information exposure vulnerability

Cisco · Data Center Network Manager

A vulnerability in Cisco Data Center Network Manager (DCNM) Software could allow an authenticated, local attacker to obtain confidential information from an affected device. The vulnerability is due to insufficient protection of confidential information on an affected device. An attacker at any privilege level could exploit this vulnerability by accessing local filesystems and extracting sensitive information from them. A successful exploit could allow the attacker to view sensitive data, which they could use to elevate their privilege.

5.5 CVSS 3.1 Medium EPSS 0.29% · top 80.6% CWE-200 · Information exposure
5.5CVSS 3.1 base score, v2 2.1
0.29%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability in Cisco Data Center Network Manager (DCNM) Software could allow an authenticated, local attacker to obtain confidential information from an affected device. The vulnerability is due to insufficient protection of confidential information on an affected device. An attacker at any privilege level could exploit this vulnerability by accessing local filesystems and extracting sensitive information from them. A successful exploit could allow the attacker to view sensitive data, which they could use to elevate their privilege.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-infordisc-DOAXVvFV Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-infordisc-DOAXVvFV Vendor Advisory

Track CVE-2020-3520 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2021-44228Apache Log4j2 JNDI lookup remote code executionApache Log4j2 versions 2.0-beta9 through 2.15.0 (excluding 2.12.2, 2.12.3, and 2.3.1) do not protect against attacker-controlled LDAP and other JNDI …KEVEPSS 100%analysed7.5CVE-2023-44487HTTP/2 Rapid Reset stream cancellation denial of serviceThe HTTP/2 protocol permits a client to cancel many streams quickly, and the server's handling of those resets consumes disproportionate resources. T…KEVEPSS 100%analysed9.8CVE-2020-3382Cisco data center network manager hard-coded credentials vulnerabilityA vulnerability in the REST API of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to bypass authentication …EPSS 2.3%9.8CVE-2020-3376Cisco data center network manager missing authentication for critical function vulnerabilityA vulnerability in the Device Manager application of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to bypa…EPSS 1.2%9.8CVE-2019-15976Cisco DCNM authentication bypass via hard-coded credentialsCisco Data Center Network Manager contains multiple authentication mechanism flaws, mapped to CWE-798 hard-coded credentials, that let an unauthentic…EPSS 93%analysed9.8CVE-2019-15975Cisco DCNM authentication bypass via hard-coded credentialsCisco Data Center Network Manager contains multiple authentication mechanism flaws, categorized as hard-coded credentials (CWE-798), that let an unau…EPSS 96%analysed9.8CVE-2019-1619Cisco DCNM web interface authentication bypass via improper session managementCisco Data Center Network Manager (DCNM) has an authentication bypass in its web-based management interface caused by improper session management. An…EPSS 83%analysed9.8CVE-2019-1620Cisco DCNM web interface unauthenticated arbitrary file upload to root RCECisco Data Center Network Manager (DCNM) has incorrect permission settings in its web-based management interface that allow an unauthenticated, remot…EPSS 84%analysed

Source: NIST National Vulnerability Database (record CVE-2020-3520), CISA KEV, FIRST EPSS (scores of 2026-10-06). This page is refreshed as NVD updates the record.