CVSS 3.1 Score 7.5 of 10 (high)


Published Jul 1, 2024
Updated: Jul 2, 2024
CWE ID 754


CVE-2024-21586 is an Improper Check for Unusual or Exceptional Conditions vulnerability found in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX Series. This vulnerability allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS) by sending specific valid traffic to the device, which will crash and restart the PFE. The affected versions include 21.4 before 21.4R3-S7.9, 22.1 before 22.1R3-S5.3, 22.2 before 22.2R3-S4.11, 22.3 before 22.3R3, and 22.4 before 22.4R3 of Junos OS on SRX Series devices. To remediate this vulnerability, organizations should update their Junos OS to versions after the listed affected versions. This vulnerability poses a high danger to organizations as it can result in a sustained DoS condition, impacting network availability and potentially disrupting critical services and operations.

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