What is CVE-2021-1367?

CVE-2021-1367 is a medium-severity vulnerability in Cisco Nx-Os Software, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2021-02-24.

How severe is CVE-2021-1367?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Improper input validation in Cisco Nx-Os Software

CVE-2021-1367

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.004 (31.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2021-1367?: CVE-2021-1367 is a medium-severity vulnerability in Cisco Nx-Os Software, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2021-02-24.
How severe is CVE-2021-1367?: Medium severity. CVSS v3 base score is 4.3 out of 10.