Security Advisory

CVE-2025-52952

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2025-07-11 15:04:35

Last updated 2025-07-11 20:10:52

Assigner juniper

CVSS score not scored

State PUBLISHED

Description

An Out-of-bounds Write vulnerability in the connectivity fault management (CFM) daemon of Juniper Networks Junos OS on MX Series with MPC-BUILTIN, MPC1 through MPC9 line cards allows an unauthenticated adjacent attacker to send a malformed packet to the device, leading to an FPC crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks: Junos OS: * All versions before 22.2R3-S1, * from 22.4 before 22.4R2. This feature is not enabled by default.

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