CVE-2021-1233

Cisco SD-WAN Information Disclosure Vulnerability

MEDIUM

4.4

CVSS Score

Published: January 20, 2021 at 08:10 PM UTC

Updated: June 17, 2026 at 03:31 AM UTC

12 products affected across 1 vendorCatalyst Sd WAN ManagerSd WAN FirmwareSd WAN Vbond Orchestrator

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Severity

MEDIUM4.4

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Catalyst Sd WAN Manager · Cisco

95%

All versions

Sd WAN Firmware · Cisco

95%

v < 18.4.3

Affected range stops below 18.4.3, so it looks safe — our inference, not a vendor statement

cisco-vedge-100-router (environment) · cisco-vedge-1000-router (environment) · cisco-vedge-100b-router (environment) · cisco-vedge-100m-router (environment) · cisco-vedge-100wm-router (environment) · cisco-vedge-2000-router (environment) · cisco-vedge-5000-router (environment) · cisco-vedge-cloud-router (environment)

Sd WAN Vbond Orchestrator · Cisco

95%

All versions

Cisco SD-WAN Solution · Cisco

60%

All versions

Vedge 100 Router · Ciscodevice

80%

All versions

Vedge 1000 Router · Ciscodevice

80%

All versions