Insufficient verification of data authenticity in Cisco Nexus 9000 Series Switches - CVE-2021-1586
Published: August 26, 2021
Vulnerability identifier: #VU56102
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1586
CWE-ID: CWE-345
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromsie the target system.
The vulnerability exists due to insufficient verification of data authenticity in the Multi-Pod or Multi-Site network configurations. A remote attacker can send specially crafted TCP data and perform a denial of service (DoS) attack.
Affected software
Cisco Nexus 9000 Series Switches
How to mitigate CVE-2021-1586
Install updates from vendor's website.
Cisco Nexus 9000 Series Switches - addressed in versions 13.2.10e, 13.2.10f, 14.2.7f, 14.2.7l, 15.1.3e, 15.1.4c, 15.2.1g, 15.2.2e, 15.2.2f