CVE-2019-1963: Cisco FXOS and NX-OS Software Authenticated Simple Network Management Protocol Denial of Service Vulnerability
A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, remote attacker to cause the SNMP application on an affected device to restart unexpectedly. The vulnerability is due to improper validation of Abstract Syntax Notation One (ASN.1)-encoded variables in SNMP packets. An attacker could exploit this vulnerability by sending a crafted SNMP packet to the SNMP daemon on the affected device. A successful exploit could allow the attacker to cause the SNMP application to restart multiple times, leading to a system-level restart and a denial of service (DoS) condition.
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID of the SNMP input packet processor vulnerability found in Cisco FXOS and NX-OS Software?
The vulnerability ID is CVE-2019-1963.
What is the severity level of CVE-2019-1963?
The severity level of CVE-2019-1963 is high with a CVSS score of 6.5.
Which Cisco software versions are affected by CVE-2019-1963?
Cisco FXOS Software versions up to 2.2.2.91 and Cisco NX-OS Software versions up to 14.1(1i) are affected.
How can an authenticated, remote attacker exploit CVE-2019-1963 vulnerability?
An attacker can exploit this vulnerability to cause the SNMP application on the affected device to restart unexpectedly by sending a crafted SNMP packet.
Where can I find more information about CVE-2019-1963 vulnerability?
You can find more information about CVE-2019-1963 on the Cisco Security Advisory at the provided reference link.