Improper resource shutdown or release in Juniper Junos OS



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-52982
CWE-ID CWE-404
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Juniper Junos OS
Operating systems & Components / Operating system

Vendor Juniper Networks, Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper resource shutdown or release

EUVDB-ID: #VU113060

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-52982

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper resource shutdown or release error in the SIP ALG. A remote non-authenticated attacker can cause a Denial-of-Service (DoS).

When an MX Series device with an MS-MPC is configured with 2 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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: before 21.2R3-S9, 22.2R3-S6, 22.4R3-S6

CPE2.3 External links

https://supportportal.juniper.net/s/article/2025-07-Security-Bulletin-Junos-OS-MX-Series-When-specific-SIP-packets-are-processed-the-MS-MPC-will-crash-CVE-2025-52982


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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