CVE ID CVE-2026-20182 Vulnerability Name Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability Project: Cisco Product: Catalyst SD-WAN Date Date Added: 2026-05-14 Due Date: 2026-05-17 Description Cisco Catalyst SD-WAN Controller & Manager contain an authentication bypass vulnerability that allows an unauthenticated, remote attacker to bypass authentication and obtain administrative privileges on an affected system. Known To Be Used in Ransomware Campaigns? Unknown Action Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlined in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.…