CVE-2019-1646: Privilege Escalation Vulnerability in Cisco SD-WAN Solution

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-01-24 · updated 2026-06-17
Weakness: CWE-264

Description

A vulnerability in the local CLI of the Cisco SD-WAN Solution could allow an authenticated, local attacker to escalate privileges and modify device configuration files. The vulnerability exists because user input is not properly sanitized for certain commands at the CLI. An attacker could exploit this vulnerability by sending crafted commands to the CLI of an affected device. A successful exploit could allow the attacker to establish an interactive session with elevated privileges. The attacker could then use the elevated privileges to further compromise the device or obtain additional configuration data from the device.

Affected products

Cisco Sd-Wan: before 18.4.0 — fixed in 18.4.0
Cisco Vbond Orchestrator: all versions
Cisco Vedge 1000 Firmware: all versions
Cisco Vedge 100 Firmware: all versions
Cisco Vedge 2000 Firmware: all versions
Cisco Vedge 5000 Firmware: all versions
Cisco Vmanage Network Management: all versions
Cisco Vsmart Controller: all versions

How to fix

Upgrade to a fixed version: Cisco Sd-Wan 18.4.0. Check the vendor advisory for mitigations.

References

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