Input validation error in Cisco Nexus 9500 R-Series - CVE-2021-1367
Published: February 25, 2021
Vulnerability identifier: #VU50945
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1367
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the Protocol Independent Multicast (PIM) feature. A remote attacker on the local network can send a spceially crrafted PIM packet and perform a denial of service (DoS) attack.
Affected software
Cisco Nexus 9500 R-Series
How to mitigate CVE-2021-1367
Install updates from vendor's website.
Cisco Nexus 9500 R-Series - addressed in versions 9.3.5.106, 9.3.6, 10.1.1