CVE-2023-44191 (published 2023-10-12T23:03:20.746Z)

An Allocation of Resources Without Limits or Throttling vulnerability in Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).

On all Junos OS QFX5000 Series and EX4000 Series platforms, when a high number of VLANs are configured, a specific DHCP packet will cause PFE hogging which will lead to dropping of socket connections.

This issue affects:

Juniper Networks Junos OS on QFX5000 Series and EX4000 Series



  *  21.1 versions prior to 21.1R3-S5;
  *  21.2 versions prior to 21.2R3-S5;
  *  21.3 versions prior to 21.3R3-S5;
  *  21.4 versions prior to 21.4R3-S4;
  *  22.1 versions prior to 22.1R3-S3;
  *  22.2 versions prior to 22.2R3-S1;
  *  22.3 versions prior to 22.3R2-S2, 22.3R3;
  *  22.4 versions prior to 22.4R2.




This issue does not affect Juniper Networks Junos OS versions prior to 21.1R1




Affected products: Vendor: Juniper Networks
Product: Junos OS
Versions: 0, 21.1, 21.2, 21.3, 21.4, 22.1, 22.2, 22.3, 22.4