Input validation error in Cisco IOS XR - CVE-2024-20406
Published: September 12, 2024
Vulnerability identifier: #VU97201
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-20406
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of ingress IS-IS packets in the segment routing feature for the Intermediate System-to-Intermediate System (IS-IS) protocol. A remote attacker on the local network can pass specially crafted packets to the device and perform a denial of service (DoS) attack.
Affected software
Cisco IOS XR
How to mitigate CVE-2024-20406
Install updates from vendor's website.
Cisco IOS XR - update to 7.11.2