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CVE-2026-20262

Cisco Catalyst SD-WAN Manager

score 85Known exploited · added 2026-06-15Public PoC ×2watchlist: cisco

Summary

Cisco Catalyst SD-WAN Manager Directory or Path Traversal Vulnerability

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.

Published 2026-06-15 · first seen here 2026-10-10

CISA required action (due 2026-06-29): 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.

Analysis & write-ups

No technical write-up from a research team yet. Contact Zero checks Unit 42, Google/Mandiant, Microsoft, Talos, CrowdStrike, Rapid7, watchTowr and others several times a day, plus NVD and CISA reference links.

Exploit availability

Public exploit code lowers the bar for attackers, so prioritise patching and hunting. These repositories are unverified. Fake PoCs that contain malware are common, so never run them outside an isolated lab.

Hunt & detect

Threat hunt brief, Sigma rule and Splunk / Sentinel / CrowdStrike queries are not available for this item yet.

References