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Medium severity5.9NVD Advisory· Published Jul 11, 2025· Updated Jun 17, 2026

CVE-2025-52982

CVE-2025-52982

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.

Affected products

51
  • Juniper Networks/Junos51 versions
    cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*+ 50 more
    • cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*range: <21.2
    • cpe:2.3:o:juniper:junos:21.2:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r2-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r2-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r3-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r3-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r3-s3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r3-s4:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r3-s5:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r3-s6:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r3-s7:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.2:r3-s8:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r2-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r2-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r3-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r3-s10:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r3-s11:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r3-s12:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r3-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r3-s3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r3-s4:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r3-s5:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r3-s6:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r3-s7:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r3-s8:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:21.4:r3-s9:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:22.2:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:22.2:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:22.2:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:22.2:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:22.2:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:22.2:r2-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:22.2:r2-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:22.2:r3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:22.2:r3-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:22.2:r3-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:22.2:r3-s3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:22.2:r3-s4:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:22.2:r3-s5:*:*:*:*:*:*
    • (no CPE)range: 0
    • (no CPE)range: <21.2R3-S9, 21.4R1, <22.2R3-S6, <22.4R3-S6

Patches

Vulnerability mechanics

References

1

News mentions

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