CVSS 3.1 Score 7.5 of 10 (high)


Published Jan 12, 2024
Updated: Jan 18, 2024
CWE ID 1286


CVE-2024-21595 is an Improper Validation of Syntactic Correctness of Input vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS. It allows an unauthenticated attacker to cause a Denial of Service (DoS) by sending a high rate of specific ICMP traffic to a device with VXLAN configured. This results in the device becoming unresponsive and requiring a manual restart for recovery. The vulnerability affects EX4100, EX4400, EX4600, and QFX5000 Series devices running certain versions of Junos OS. The base severity is rated as HIGH, with an exploitability score of 3.9 out of 10.

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