# Cisco Expressway CVE-2026-76466: Root RCE, No Workaround

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## Article Metadata
- Title: Cisco Expressway CVE-2026-76466: Root RCE, No Workaround
- Summary: CVE-2026-76466 (CVSS 9.8) gives unauthenticated root on clustered Expressway-C and -E. There is no workaround: upgrade to X15.5.20; X14 must migrate.
- Published: Oct 24, 2026, 5:13 PM EDT
- Updated: Oct 24, 2026, 5:13 PM EDT
- Category: Exploits
- Primary topic: Cve 2026 76466
- Authors: Alex Kim
- Read time: 4 min
- Language: en_US
- Publication time zone: America/New_York (U.S. Eastern Time)
- Access: Free to read

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