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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.

PUBLISHED Reserved 2025-06-23 | Published 2025-07-11 | Updated 2025-07-15 | Assigner juniper




MEDIUM: 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

HIGH: 8.2CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M

Problem types

CWE-404 Improper Resource Shutdown or Release

Product status

Default status
unaffected

Any version before 21.2R3-S9
affected

21.4 (semver) before 21.4*
affected

22.2 (semver) before 22.2R3-S6
affected

22.4 (semver) before 22.4R3-S6
affected

References

supportportal.juniper.net/JSA100088 vendor-advisory

cve.org (CVE-2025-52982)

nvd.nist.gov (CVE-2025-52982)

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