8.6
CVSSv3

CVE-2022-20823

Published: 25/08/2022 Updated: 01/09/2022
CVSS v3 Base Score: 8.6 | Impact Score: 4 | Exploitability Score: 3.9

Vulnerability Summary

A vulnerability in the OSPF version 3 (OSPFv3) feature of Cisco NX-OS Software could allow an unauthenticated, remote malicious user to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to incomplete input validation of specific OSPFv3 packets. An attacker could exploit this vulnerability by sending a malicious OSPFv3 link-state advertisement (LSA) to an affected device. A successful exploit could allow the malicious user to cause the OSPFv3 process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition. Note: The OSPFv3 feature is disabled by default. To exploit this vulnerability, an attacker must be able to establish a full OSPFv3 neighbor state with an affected device. For more information about exploitation conditions, see the Details section of this advisory.

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Vendor Advisories

A vulnerability in the OSPF version 3 (OSPFv3) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device This vulnerability is due to incomplete input validation of specific OSPFv3 packets An attacker could exploit this vulnerability by sending a malicious OS ...