CVE-2026-20262: Cisco Catalyst SD-WAN Manager Path Traversal Vulnerability

**Executive Summary:** CVE-2026-20262 is a high-severity authenticated directory traversal in Cisco Catalyst SD-WAN Manager that allows an attacker to create or overwrite arbitrary files on the host, enabling persistence, privilege escalation, and network-wide impact; CISA added it to the Known Exploited Vulnerabilities catalog on June 15, 2026, indicating active in-the-wild exploitation, and the report includes mitigation, detection queries, and immediate remediation steps.