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

Required action (CISA's text)

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Description (NVD)

Cisco Catalyst SD-WAN Manager contains a directory or path traversal vulnerability that could allow an authenticated, remote attacker to create a file or overwrite any file on the filesystem of an affected system.

SOURCES

• CISA KEVCISA Known Exploited Vulnerabilities catalog

Other Cisco flaws

• CVE-2026-20320: Cisco BroadWorks Improper Restriction of XML External Entity Reference Vulnerability
• CVE-2026-76418: Cisco Secure Firewall ASA Software and Cisco Secure FTD Software Unchecked Return Value to NULL Pointer Dereference Vulnerability
• CVE-2026-76519: Cisco Secure Email Gateway Relative Path Traversal Vulnerability
• CVE-2026-76504: Cisco Catalyst SD-WAN Manager Hex Encoding Vulnerability
• CVE-2026-76460: Cisco Identity Services Engine Incorrect Use of Privileged APIs Vulnerability

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.