VYPR
Unrated severityNVD Advisory· Published Mar 19, 2020· Updated Nov 15, 2024

Cisco SD-WAN Solution Command Injection Vulnerability

CVE-2020-3266

Description

A vulnerability in the CLI of Cisco SD-WAN Solution software could allow an authenticated, local attacker to inject arbitrary commands that are executed with root privileges. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by authenticating to the device and submitting crafted input to the CLI utility. The attacker must be authenticated to access the CLI utility. A successful exploit could allow the attacker to execute commands with root privileges.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Authenticated local attackers can inject arbitrary root commands via insufficiently validated CLI input in Cisco SD-WAN Solution software.

Vulnerability

The vulnerability exists in the CLI of Cisco SD-WAN Solution software. It arises from insufficient input validation, allowing an authenticated, local attacker to submit crafted input to the CLI utility. The affected versions include those prior to the fixed releases mentioned in Cisco's advisory [1].

Exploitation

An attacker must first authenticate to the device and have access to the CLI utility. By submitting specially crafted input, the attacker can inject arbitrary commands that will be executed [1].

Impact

Successful exploitation allows the attacker to execute arbitrary commands with root privileges, resulting in full compromise of the device's confidentiality, integrity, and availability [1].

Mitigation

Cisco has released free software updates to address this vulnerability. Customers should upgrade to the fixed versions as specified in Cisco Security Advisory cisco-sa-sdwclici-cvrQpH9v [1]. No workarounds are available.

AI Insight generated on May 25, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.

Affected products

2

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

1

News mentions

0

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