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9.5CRITICAL

Multiple Vulnerabilities in Cisco Catalyst SD-WAN Products Could Allow for Authentication Bypass

📅 26 February 2026 at 06:24 UTC📰 CIS AdvisoriesView original source ↗

Multiple vulnerabilities have been discovered in Cisco Catalyst SD-WAN products, the most severe of which could allow for authentication bypass. Cisco Catalyst SD-WAN (formerly Viptela) is a secure, cloud-delivered software-defined WAN architecture that optimizes application performance by intelligently routing traffic over any combination of transport links (MPLS, broadband, LTE). Successful exploitation of the most severe of these vulnerabilities could allow an unauthenticated, remote attacker to bypass authentication and obtain administrative privileges on an affected system.

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

Multiple vulnerabilities in Cisco Catalyst SD-WAN products could allow for authentication bypass, potentially leading to unauthorized access and administrative privileges on affected systems.

⚙️Technical Details
Affected Systems
Cisco Catalyst SD-WAN (formerly Viptela)
Attack Vectors
Authentication bypass via remote exploitation
💥Impact Assessment
Severity: C
Who Is at Risk
Organizations using Cisco Catalyst SD-WAN products with unpatched vulnerabilities
🛡️Recommended Actions
1Apply patches and updates to affected systems as soon as possible
2Implement additional security controls, such as multi-factor authentication
3Monitor system logs for suspicious activity and investigate any potential breaches
📦Affected Products
Cisco Catalyst SD-WAN (formerly Viptela)

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