Exploited Zero-Day Flaw in Cisco UC Could Affect Millions
Mass scanning is underway for CVE-2026-20045, which Cisco tagged as critical because successful exploitation could lead to a complete system takeover.
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Mass scanning is underway for CVE-2026-20045, which Cisco tagged as critical because successful exploitation could lead to a complete system takeover.
Cisco has released fresh patches to address what it described as a "critical" security vulnerability impacting multiple Unified Communications (CM) products and Webex Calling Dedicated Instance that it has been actively exploited as a zero-day in the wild
Cisco has fixed a critical Unified Communications and Webex Calling remote code execution vulnerability, tracked as CVE-2026-20045, that has been actively exploited as a zero-day in attacks. [...]