CVE-2019-1962: Cisco NX-OS Software Cisco Fabric Services over IP Denial of Service Vulnerability
A vulnerability in the Cisco Fabric Services component of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause process crashes, which can result in a denial of service (DoS) condition on an affected system. The vulnerability is due to insufficient validation of TCP packets when processed by the Cisco Fabric Services over IP (CFSoIP) feature. An attacker could exploit this vulnerability by sending a malicious Cisco Fabric Services TCP packet to an affected device. A successful exploit could allow the attacker to cause process crashes, resulting in a device reload and a DoS condition. Note: There are three distribution methods that can be configured for Cisco Fabric Services. This vulnerability affects only distribution method CFSoIP, which is disabled by default. See the Details section for more information.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2019-1962?
CVE-2019-1962 has a severity rating that can lead to denial of service (DoS) on affected Cisco NX-OS systems.
How do I fix CVE-2019-1962?
To address CVE-2019-1962, users should upgrade to a fixed software version as specified in the Cisco security advisory.
Which Cisco NX-OS versions are affected by CVE-2019-1962?
CVE-2019-1962 affects Cisco NX-OS versions from 5.2 up to 6.2(29) and from 7.3 to 8.1.
Can CVE-2019-1962 be exploited remotely?
Yes, CVE-2019-1962 can be exploited by an unauthenticated remote attacker.
What component of Cisco NX-OS is impacted by CVE-2019-1962?
CVE-2019-1962 impacts the Cisco Fabric Services component of Cisco NX-OS Software.