Medium severity4.4NVD Advisory· Published Jan 20, 2021· Updated Jun 17, 2026

CVE-2021-1233

Description

A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to access sensitive information on an affected device. The vulnerability is due to insufficient input validation of requests that are sent to the iperf tool. An attacker could exploit this vulnerability by sending a crafted request to the iperf tool, which is included in Cisco SD-WAN Software. A successful exploit could allow the attacker to obtain any file from the filesystem of an affected device.

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Affected products

Cisco Systems, Inc./SD-WAN Softwarellm-fuzzy
Cisco Systems, Inc./Cisco SD-WAN Solution softwarecpe-rescue
Range: n/a

Patches

Vulnerability mechanics

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-infodis-2-UPO232DGnvdVendor Advisory

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