#VU67372 Buffer overflow in Cisco IOS XR - CVE-2022-20846

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Main Vulnerability Database Vulnerabilities #VU67372

#VU67372 Buffer overflow in Cisco IOS XR - CVE-2022-20846

Published: September 15, 2022


Vulnerability identifier: #VU67372
Vulnerability risk: Medium
CVSSv4.0: 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/E:U/U:Green
CVE-ID: CVE-2022-20846
CWE-ID: CWE-120
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vulnerable software:
Cisco IOS XR
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of certain Cisco Discovery Protocol messages. A remote non-authenticated attacker on the local network can send specially crafted Cisco Discovery Protocol packets to the affected device and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links