CVE-2025-52981 Information

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on

SRX1600 SRX2300 SRX 4000 Series and SRX5000 Series with SPC3

allows an unauthenticated network-based attacker to cause a Denial-of-Service (DoS).

If a sequence of specific PIM packets is received this will cause a flowd crash and restart.

This issue affects Junos OS:

all versions before 21.2R3-S9
21.4 versions before 21.4R3-S11
22.2 versions before 22.2R3-S7
22.4 versions before 22.4R3-S6
23.2 versions before 23.2R2-S4
23.4 versions before 23.4R2-S4
24.2 versions before 24.2R2.

This is a similar but different vulnerability than the issue reported as

CVE-2024-47503 published in JSA88133.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://supportportal.juniper.net/JSA100087

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5

CNNVD-202507-1667 (Published: 2025-07-11)

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