CRITICALExploited in the wildUnknown

Cisco Catalyst SD-WAN Controller and Manager Authentication Bypass Vulnerability

CISA Mitigation Instructions: https://www.cisa.gov/news-events/directives/ed-26-03-mitigate-vulnerabilities-cisco-sd-wan-systems ; https://www.cisa.gov/news-events/directives/supplemental-direction-ed-26-03-hunt-and-hardening-guidance-cisco-sd-wan-systems ; https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa-EHchtZk ; https://nvd.nist.gov/vuln/detail/CVE-2026-20127

CVE-2026-20127Published 5 months agoSource: CISA KEV

Affected packages

No package-level mapping for this advisory.

Exploit signal

Known exploited (CISA KEV)
Yes
EPSS score
88.24%
EPSS percentile
99.8%

EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs. This advisory is in the top 100%.

Sources

No external sources available.

Recommended response stack

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Cisco Catalyst SD-WAN Controller and Manager Authentication Bypass Vulnerability | HackTribune