Record-High Run, Analyst Price Targets, AI Networking Tailwinds—and a New Zero-Day Risk
Cisco Systems, Inc. (NASDAQ: CSCO) enters the final stretch of 2025 with a rare combination investors don’t often associate with the mature networking giant: momentum and a fresh narrative. After finally surpassing its dot-com era peak earlier this month, Cisco stock is trading like a company that has found a new catalyst—one tied directly to the infrastructure buildout powering artificial intelligence. [1]
But today’s story isn’t just about an AI-driven rerating. As of Friday, Dec. 19, 2025, traders are also digesting a serious cybersecurity headline involving Cisco email security products, plus a cluster of routine-but-newsworthy insider and institutional filings that often surface after a stock hits multi-decade highs.
