Is CVE-2020-3376 actively exploited?

No active exploitation of CVE-2020-3376 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-3376 be exploited remotely?

Yes. CVE-2020-3376 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-3376?

CVE-2020-3376 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2020-3376

CWE-306Published: July 31, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A vulnerability in the Device Manager application of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary actions on an affected device. The vulnerability is due to a failure in the software to perform proper authentication. An attacker could exploit this vulnerability by browsing to one of the hosted URLs in Cisco DCNM. A successful exploit could allow the attacker to interact with and use certain functions within the Cisco DCNM.

NVD Source

Technical Analysis

CVE-2020-3376 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.