PT-2025-29251 · Juniper Networks · Junos

Published

2025-07-09

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Updated

2026-01-30

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CVE-2025-52981

CVSS v4.0

8.7

High

VectorAV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:X/RE:M/U:X
Name of the Vulnerable Software and Affected Versions: Juniper Networks Junos OS versions prior to 21.2R3-S9 Juniper Networks Junos OS versions 21.4 prior to 21.4R3-S11 Juniper Networks Junos OS versions 22.2 prior to 22.2R3-S7 Juniper Networks Junos OS versions 22.4 prior to 22.4R3-S6 Juniper Networks Junos OS versions 23.2 prior to 23.2R2-S4 Juniper Networks Junos OS versions 23.4 prior to 23.4R2-S4 Juniper Networks Junos OS versions 24.2 prior to 24.2R2
Description: An Improper Check for Unusual or Exceptional Conditions vulnerability exists in the flow processing daemon (flowd) of Juniper Networks Junos OS. This vulnerability allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). The vulnerability is triggered when a sequence of specific Protocol Independent Multicast (PIM) packets is received, leading to a crash and restart of the flowd process.
Recommendations: Update to Junos OS version 21.2R3-S9 or later. Update to Junos OS version 21.4R3-S11 or later. Update to Junos OS version 22.2R3-S7 or later. Update to Junos OS version 22.4R3-S6 or later. Update to Junos OS version 23.2R2-S4 or later. Update to Junos OS version 23.4R2-S4 or later. Update to Junos OS version 24.2R2 or later.

Fix

DoS

Improper Check for Exceptional Conditions

Weakness Enumeration

CWE-754

Related Identifiers

BDU:2025-08752
CVE-2025-52981

Affected Products

Junos