CVE-2021-34709: 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 the severity of CVE-2021-34709?
The severity of CVE-2021-34709 is medium with a CVSS score of 6.4.
Which software versions are affected by CVE-2021-34709?
Cisco Network Convergence System (NCS) 540 Series Routers running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for Cisco 8000 Series Routers up to version 7.3.2 are affected by CVE-2021-34709.
What is the vulnerability description of CVE-2021-34709?
CVE-2021-34709 is a vulnerability in the image verification checks of Cisco Network Convergence System (NCS) 540 Series Routers and Cisco 8000 Series Routers, which allows an authenticated, local attacker to execute arbitrary code.
How can an attacker exploit CVE-2021-34709?
An authenticated, local attacker can exploit CVE-2021-34709 to execute arbitrary code.
Is Cisco 8101-32fh vulnerable to CVE-2021-34709?
No, Cisco 8101-32fh is not vulnerable to CVE-2021-34709.