CISCO Security Advisory

Published Date: June 11, 2026

CVE: CVE-2026-20245

Advisory Summary

❗️⚠️ Cisco Catalyst SD-WAN Privilege Escalation Vulnerability — Immediate Action Required ⚠️❗️

A critical vulnerability (CVE-2026-20245) has been identified in the CLI of Cisco Catalyst SD-WAN Controller (formerly vSmart), Catalyst SD-WAN Manager (formerly vManage), and Catalyst SD-WAN Validator (formerly vBond). This flaw allows an authenticated local attacker with netadmin privileges to escalate to root-level command execution by uploading a specially crafted file. The root cause is inadequate validation of user-supplied input leading to possible command injection.

This vulnerability poses a significant threat to SD-WAN infrastructure integrity, and operators must prioritize swift patch deployments and proactive system audits to prevent exploitation and potential configuration manipulation of edge devices.

-WAN -2026-20245

Reference: Vendor Advisory