Cisco alert: Four high-severity flaws in routers, switches and AnyConnect VPN for Windows

Cisco is urging customers to update small business switches, its DNA Center software, routers with its StarOS software, and its AnyConnect Secure Mobility VPN client for Windows.

Cisco has disclosed a bug in the IPv6 packet processing engine of several Cisco Small Business Smart and Managed Switches that could allow a remote attacker without credentials to trigger a denial of service on affected devices.

Affected switches include 250 Series Smart Switches, 350 Series Managed Switches, 350X Series Stackable Managed Switches, 550X Series Stackable Managed Switches, Small Business 200 Series Smart Switches, Small Business 300 Series Managed Switches, and Small Business 500 Series Stackable Managed Switches.

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Source: ZDNet