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Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability

medcisco_psirtPublished 2026-06-16

<p><strong>May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and fixed after the <a href="https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa-EHchtZk">Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability</a> was disclosed in February 2026. This new advisory is for a new vuln

MITRE ATT&CK techniques

System ChecksT1497.001

Indicators of compromise

CVE-2026-20182cve
https://www.cisco.com/c/en/us/support/docs/routers/sd-wan/225842-remediate-catalyst-sd-wan-security.htmlurl

Original source: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa2-v69WY2SW?vs_f=Cisco%20Security%20Advisory%26vs_cat=Security%20Intelligence%26vs_type=RSS%26vs_p=Cisco%20Catalyst%20SD-WAN%20Controller%20Authentication%20Bypass%20Vulnerability%26vs_k=1