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CVE-2020-3592: Cisco SD-WAN vManage Software Authorization Bypass Vulnerability

• Severity: medium (CVSS 6.5 v3.1)
• 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: 2020-11-06 · updated 2026-06-17
• Weakness: CWE-284

Description

A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to bypass authorization and modify the configuration of an affected system. The vulnerability is due to insufficient authorization checking on an affected system. An attacker could exploit this vulnerability by sending crafted HTTP requests to the web-based management interface of an affected system. A successful exploit could allow the attacker to gain privileges beyond what would normally be authorized for their configured user authorization level. This could allow the attacker to modify the configuration of an affected system.

Affected products

• Cisco Catalyst SD-WAN Manager: 20.3.1
• Cisco Sd-Wan Vmanage: through 20.1.12

References

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanuafw-ZHkdGGEy
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanuafw-ZHkdGGEy

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