What’s Vulnerable › Vulnerabilities

CVE-2019-1647: Cisco SD-WAN Solution Unauthorized Access Vulnerability

• Severity: high (CVSS 8.0 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% 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-284

Description

A vulnerability in the Cisco SD-WAN Solution could allow an authenticated, adjacent attacker to bypass authentication and have direct unauthorized access to other vSmart containers. The vulnerability is due to an insecure default configuration of the affected system. An attacker could exploit this vulnerability by directly connecting to the exposed services. An exploit could allow the attacker to retrieve and modify critical system files.

Affected products

• Cisco Sd-Wan: before 18.4.0 — fixed in 18.4.0
• 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

• http://www.securityfocus.com/bid/106705
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-sdwan-unaccess
• http://www.securityfocus.com/bid/106705
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-sdwan-unaccess

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