# CVE-2025-52982

## Summary

- **CVE ID:** CVE-2025-52982
- **Severity:** HIGH
- **CVSS Score:** 8.2 (CVSS: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)
- **CWE:** CWE-404
- **Published:** Jul 11, 2025
- **Last Modified:** Mar 13, 2026

## 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

- Juniper Networks — Junos OS (0)
- Juniper Networks — Junos OS (21.4)
- Juniper Networks — Junos OS (22.2)
- Juniper Networks — Junos OS (22.4)

## References

- [CNA](https://supportportal.juniper.net/JSA100088)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.38%
- **EPSS Percentile:** 31.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._