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Cybersecurity

Critical Cisco Expressway Flaw Allows Hackers to Execute Root Commands, Public PoC Released

CyberPress ·

A public proof-of-concept exploit is now available for CVE-2026-76466, a critical hard-coded credential defect in Cisco Expressway that lets an unauthenticated attacker run operating-system commands as root. Cisco published its advisory on October 21, 2026, and the bug carries a CVSS score of 9.8. Researcher Nicolas Krassas (dinosn) posted the exploit and a fleet detector […] The post Critical Cisco Expressway Flaw Allows Hackers to Execute Root Commands, Public PoC Released appeared first on Cyber Security News .

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