CVE-2021-34708: Cisco IOS XR Software for Cisco 8000 and Network Convergence System 540 Series Routers Image Verification Vulnerabilities
Multiple vulnerabilities in image verification checks of Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for Cisco 8000 Series Routers could allow an authenticated, local attacker to execute arbitrary code on the underlying operating system. For more information about these vulnerabilities, see the Details section of this advisory.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-34708?
CVE-2021-34708 is a vulnerability that affects Cisco Network Convergence System (NCS) 540 Series Routers and Cisco 8000 Series Routers.
How severe is CVE-2021-34708?
CVE-2021-34708 has a severity rating of 6.7, which is classified as high.
What is the affected software for CVE-2021-34708?
The affected software for CVE-2021-34708 includes Cisco IOS XR NCS540L software images and Cisco IOS XR Software for Cisco 8000 Series Routers.
How can an attacker exploit CVE-2021-34708?
An authenticated, local attacker can exploit CVE-2021-34708 to execute arbitrary code.
Is there a fix available for CVE-2021-34708?
Yes, Cisco has released software updates to address CVE-2021-34708. It is recommended to update to the latest version.