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Product · Cisco

Cisco Catalyst SD-WAN Controller

7 known vulnerabilities.

All Critical High Medium Low Exploited only Public exploit

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  • Critical 9.9
    CVE-2026-20303 Public exploit

    Cisco Catalyst SD-WAN Security Hardening Release - Input Validation Vulnerabilities

    As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Catalyst SD-WAN engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple inter…

    Cisco Cisco Catalyst SD-WAN Manager Cisco Catalyst SD-WAN Controller Network devices
  • Critical 10.0
    CVE-2026-20182 Exploited Public exploit EPSS 92%

    Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability

    May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and fixed after the was disclosed in February 2026. This new advisory is for a new vulnerability in the control connection handshaking. The secti…

    Cisco Cisco Catalyst SD-WAN Manager Cisco Catalyst SD-WAN Controller Network devices
    KEV May 14, 2026