CVE-2021-1305: Cisco IOS XE SD-WAN

Medium severity, CVSS 4.3. EPSS: 1.3% chance of exploitation in the next 30 days.

Multiple vulnerabilities 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, gain access to sensitive information, and view information that they are not authorized to access. For more information about these vulnerabilities, see the Details section of this advisory.

Affected products

• Cisco IOS XE SD-WAN: affected versions not specified
• Cisco SD-WAN Firmware: before 20.3.2 (fixed in 20.3.2); version 20.4.0 only
• Cisco SD-WAN Vbond Orchestrator: affected versions not specified
• Cisco SD-WAN Vsmart Controller Firmware: any version

Published 2021-01-20. Last modified 2026-06-17.