Cisco's stock plummeted 5.01% intraday on Tuesday, as ongoing concerns over a previously disclosed product security vulnerability weighed on investor sentiment.

The decline was compounded by broad weakness across the communication equipment sector, with several peers also trading lower. The security vulnerability, which challenges the reliability of Cisco's core networking infrastructure, has raised fears about potential erosion of customer confidence and increased remediation costs.

While some analysts maintain positive long-term ratings, the near-term overhang from the security issue and sector-wide selling pressure contributed to the sharp intraday drop.