Cisco Catalyst SD-WAN Controller and Manager Authentication Bypass Vulnerability
CVSS Skor
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EPSS İhtimal
%88.5
Risk Skoru
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Yayın
7 ay önce
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Critical Cisco Catalyst SD-WAN Manager API authentication bypass exploited in the wild (CVE-2026-76504)
OverviewOn September 30, 2026, Cisco published a security advisory for CVE-2026-76504, a critical API authentication bypass vulnerability affecting Cisco Catalyst SD-WAN Manager. The vulnerability has a CVSSv3.1 score of 9.8 and results from improper handling of URL encoding (CWE-177). An unauthenticated, remote attacker can send a crafted HTTP request that bypasses an authentication rule for a specific API endpoint, gaining access to the API with the privileges of the admin user.According to Cisco, CVE-2026-76504 is being actively exploited in the wild; Cisco PSIRT became aware of the activit
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curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-20127"