CVE-2021-1367

Medium

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.

SeverityMedium

CVSS4.3

Exploit probability—

Product

Cisco Nx-os

PublishedFeb 24, 2021

First seenFeb 24, 2021

Weakness typeCWE-20Improper input validation

How to fix

Vendor advisories

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-pim-dos-Y8SjMz4

Affected products

Product	Affected versions	Fixed in
cisco nx-os	9.3\(5\)	—

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