CVSS Score of 10 (low)


Published Jul 14, 2023
Updated: Jul 27, 2023
CWE ID 416


CVE-2023-36833 is a Use After Free vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS Evolved on PTX10001-36MR, PTX10004, PTX10008, and PTX10016 with LC1201/1202. An adjacent, unauthenticated attacker can exploit this vulnerability to cause a Denial of Service (DoS). The issue occurs when the process 'aftman-bt' crashes after multiple flaps on a multicast-only fast reroute (MoFRR) enabled interface, causing the respective FPC to stop forwarding traffic. To remediate this vulnerability, the affected FPC needs to be rebooted to restore service. Organizations using the affected products should be aware of the potential risk this vulnerability poses in terms of service disruption.

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