Improper Encoding or Escaping of Output in Catalyst SD-WAN Manager (formerly SD-WAN vManage) - CVE-2026-20245

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Main Vulnerability Database Vulnerabilities #VU133402

Improper Encoding or Escaping of Output in Catalyst SD-WAN Manager (formerly SD-WAN vManage) - CVE-2026-20245

Published: June 5, 2026


Vulnerability identifier: #VU133402
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-20245
CWE-ID: CWE-116
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Catalyst SD-WAN Manager (formerly SD-WAN vManage)

Detailed vulnerability description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to insufficient validation of user-supplied input in the CLI. A local user can upload a specially crafted file and elevate privileges on the target system.


How to mitigate CVE-2026-20245

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Sources