CVE-2022-22212: Juniper Junos OS Evolved

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

An Allocation of Resources Without Limits or Throttling vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved allows unauthenticated network based attacker to cause a Denial of Service (DoS). On all Junos Evolved platforms hostbound protocols will be impacted by a high rate of specific hostbound traffic from ports on a PFE. Continued receipt of this amount of traffic will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS Evolved: 21.2 versions prior to 21.2R3-EVO; 21.3 versions prior to 21.3R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 21.2R1.

Affected products

• Juniper Junos OS Evolved: version 21.2 only; version 21.3 only

Published 2022-07-20. Last modified 2026-06-17.