VULNERABILITY INTELLIGENCE

CVE-2021-1367

CVSS score4.3 MEDIUM
EPSS probability0.40%
CISA KEVNot currently listed
Published2021-02-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Description

A vulnerability in the Protocol Independent Multicast (PIM) feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted PIM packet to an affected device. A successful exploit could allow the attacker to cause a traffic loop, resulting in a DoS condition.

Weakness classification

  • psirt@cisco.com: CWE-20

Primary references