EUVD-2026-30324

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 section of this advisory includes Show...

The vulnerability of the centralized network management system of Cisco Catalyst SD-WAN Manager and the software for traffic management of Cisco Catalyst SD-WAN Controller, due to authentication mechanism flaws, allows attackers to gain unauthorized access to the system.

The vulnerability of the centralized network management system Cisco Catalyst SD-WAN Manager and the software for traffic management called Cisco Catalyst SD-WAN Controller is related to authentication mechanism flaws. Exploiting this vulnerability could allow an attacker to gain unauthorized...

CVE-2026-20127

A vulnerability in the peering authentication in Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, and Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an unauthenticated, remote attacker to bypass authentication and obtain administrative privileges on an affected syste...

CVE-2025-20293

CVE-2025-20293 affects Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers for Cloud (9800-CL). The root cause is incomplete cleanup at the end of the Day One setup, allowing an unauthenticated, remote attacker to reach the PKI server via SCEP requests. A successful exploit could ...