CVE-2025-52982 Information

Jul 12, 2025 cve

Description

An Improper Resource Shutdown or Release vulnerability in the SIP ALG of Juniper Networks Junos OS on MX Series with MS-MPC allows an unauthenticated network-based attacker to cause a Denial-of-Service (DoS).

When an MX Series device with an MS-MPC is configured with two or more service sets which are both processing SIP calls a specific sequence of call events will lead to a crash and restart of the MS-MPC. This issue affects Junos OS:

all versions before 21.2R3-S9
21.4 versions from 21.4R1
22.2 versions before 22.2R3-S6
22.4 versions before 22.4R3-S6.

As the MS-MPC is EoL after Junos OS 22.4 later versions are not affected.

This issue does not affect MX-SPC3 or SRX Series devices.

CVSS Vector

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

Reference

https://supportportal.juniper.net/JSA100088

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.9

CNNVD-202507-1665 (Published: 2025-07-11)

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