How severe is CVE-2020-3377?

CVE-2020-3377 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2020-3377 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-3377?

CVE-2020-3377 primarily affects Cisco Data Center Network Manager. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-3377?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-3377 published?

CVE-2020-3377 was published on 2020-07-31 and last updated on 2026-06-17.

CVE-2020-3377

CVE-2020-3377 is a medium-severity vulnerability in Cisco Data Center Network Manager with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Cisco Data Center Network Manager
Published: 2020-07-31
Last modified: 2026-06-17

Description

A vulnerability in the Device Manager application of Cisco Data Center Network Manager (DCNM) could allow an authenticated, remote attacker to inject arbitrary commands on the affected device. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending crafted arguments to a specific field within the application. A successful exploit could allow the attacker to run commands as the administrator on the DCNM.

Frequently asked questions

What is CVE-2020-3377?: A vulnerability in the Device Manager application of Cisco Data Center Network Manager (DCNM) could allow an authenticated, remote attacker to inject arbitrary commands on the affected device. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending crafted arguments to a specific field within the application. A successful exploit could allow the attacker to run commands as the administrator on the DCNM.
How severe is CVE-2020-3377?: CVE-2020-3377 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2020-3377 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-3377?: CVE-2020-3377 primarily affects Cisco Data Center Network Manager. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-3377?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-3377 published?: CVE-2020-3377 was published on 2020-07-31 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-devmgr-cmd-inj-Umc8RHNh

Affected products (4)

cpe:2.3:a:cisco:data_center_network_manager:11.0\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:data_center_network_manager:11.1\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:data_center_network_manager:11.2\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:data_center_network_manager:11.3\(1\):*:*:*:*:*:*:*

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