Is CVE-2020-3227 actively exploited?

No active exploitation of CVE-2020-3227 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-3227 be exploited remotely?

Yes. CVE-2020-3227 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-3227?

CVE-2020-3227 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2020-3227

CWE-264Published: June 3, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A vulnerability in the authorization controls for the Cisco IOx application hosting infrastructure in Cisco IOS XE Software could allow an unauthenticated, remote attacker to execute Cisco IOx API commands without proper authorization. The vulnerability is due to incorrect handling of requests for authorization tokens. An attacker could exploit this vulnerability by using a crafted API call to request such a token. An exploit could allow the attacker to obtain an authorization token and execute any of the IOx API commands on an affected device.

NVD Source

Technical Analysis

CVE-2020-3227 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.