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CVE-2020-3227
CRITICAL
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.
Published: Jun 3, 2020
Modified: Jun 17, 2026
CWE-264
CWE-863
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products (70)
| Vendor | Product | Version |
|---|---|---|
| cisco | ios_xe | 3.11.6e |
| cisco | ios_xe | 16.3.1 |
| cisco | ios_xe | 16.3.1a |
| cisco | ios_xe | 16.3.2 |
| cisco | ios_xe | 16.3.3 |
| cisco | ios_xe | 16.3.4 |
| cisco | ios_xe | 16.3.5 |
| cisco | ios_xe | 16.3.5b |
| cisco | ios_xe | 16.3.6 |
| cisco | ios_xe | 16.3.7 |
| cisco | ios_xe | 16.3.8 |
| cisco | ios_xe | 16.3.9 |
| cisco | ios_xe | 16.4.1 |
| cisco | ios_xe | 16.4.2 |
| cisco | ios_xe | 16.4.3 |
| cisco | ios_xe | 16.5.1 |
| cisco | ios_xe | 16.5.1a |
| cisco | ios_xe | 16.5.1b |
| cisco | ios_xe | 16.5.2 |
| cisco | ios_xe | 16.5.3 |
…and 50 more
GitHub Security Advisory GHSA-qmfx-jqw3-rhhv
A vulnerability in the authorization controls for the Cisco IOx application hosting...
References (2)
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
3.41%
Top 12% most likely to be exploited
Threat Score
40.2 / 100
Data Sources
NVD
EPSS
GitHub