Cisco’s Unified Industrial Wireless Software for Ultra-Reliable Wireless Backhaul (URWB) Access Points contain a severe vulnerability that potentially allows attackers to execute commands with root privileges on affected systems.
The flaw, identified as CVE-2024-20418, holds a CVSS score of 10, underscoring its critical nature. Currently, there are no workarounds, although Cisco has released a software update to address this issue.
The vulnerability exists due to insufficient validation within the URWB web-based management interface, making it possible for unauthenticated attackers to exploit the flaw by sending malicious HTTP requests to the interface. A successful exploit could grant attackers root access, putting networked devices at significant risk. Cisco urges users to upgrade to the latest firmware to mitigate potential impacts.
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Affected Cisco Devices and Identifying Vulnerable Systems
The vulnerability affects Cisco Catalyst models operating in URWB mode, including the Catalyst IW9165D, IW9165E, and IW9167E series. Users can determine their device’s configuration by running the show mpls-config command in the CLI. Devices that respond positively to this command are in URWB mode and are at risk. Importantly, other Cisco wireless devices, including the 6300 Series and various Aironet models, remain unaffected.
No Workarounds Available – Upgrade Required
Cisco has not provided a workaround for the vulnerability, making an immediate upgrade essential. Fixed software versions are available, with Cisco recommending that users follow their usual update channels if they have active service contracts. Customers without a service contract should contact Cisco TAC for assistance.
What is Cisco’s Ultra-Reliable Wireless Backhaul (URWB)?
Cisco’s URWB technology provides the robust, low-latency wireless connectivity essential for critical, high-stakes applications across industrial and mobile environments. Designed to replace costly and complex wired infrastructure, URWB enables seamless, multigigabit performance with minimal packet loss, making it invaluable for sectors relying on autonomous systems, such as manufacturing, transportation, and energy.
URWB extends beyond conventional wireless capabilities, using 802.11 technology over unlicensed spectrum to allow scalable, interference-resistant connectivity. It also features “make-before-break†handoffs and Multipath Operations (MPO) to ensure uninterrupted connections for fast-moving assets like automated guided vehicles (AGVs) and trains, even in high-speed or noise-prone environments.
Industries such as ports, railways, and manufacturing leverage URWB for real-time applications, including video monitoring and remote machinery control, benefiting from reduced deployment costs and greater flexibility. The technology supports dual-mode capability, allowing devices to toggle between URWB and Wi-Fi 6/6E based on project needs, thereby optimizing infrastructure investments.
Keeping Cisco Devices and Networks Secure
Cisco recommends regularly consulting its Security Advisories page to stay updated on vulnerabilities and ensure timely software upgrades. The Cisco Product Security Incident Response Team (PSIRT) is committed to validating affected and fixed release details, helping organizations better manage risk.
For industries relying on Cisco’s URWB for seamless, reliable wireless connectivity, this security update serves as a crucial step in maintaining robust and secure network operations.
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