CISCO Security Advisory
Published Date: July 6, 2026
CVE: CVE-2026-20191
Advisory Summary
🔔 Cisco Catalyst Center Arbitrary File Read Vulnerability
A critical security vulnerability has been identified in Cisco Catalyst Center (CVE-2026-20191) that permits an unauthenticated, remote attacker to read arbitrary files within a restricted container. This flaw stems from insufficient validation of user-supplied input, enabling exploitation via crafted HTTP requests to impacted devices.
The severity is rated high due to the sensitive nature of unauthorized file access. Crucially, Cisco has addressed this issue with software updates; however, no effective workarounds currently exist, making immediate patching essential to mitigate risk.
Stakeholders operating Cisco Catalyst Center should prioritize applying the provided security updates to protect infrastructure from potential data breaches or information exposure.
- Review and deploy Cisco’s software updates immediately.
- Monitor affected devices closely for unauthorized access attempts.
- Enhance network perimeter protections until patching is completed.
For detailed technical guidance and patch downloads, access the official Cisco security advisory.
Reference: Vendor Advisory