EUVD-2025-21148Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
4DescriptionCVE.org
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.
Analysis
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.
Technical ContextAI
A denial of service vulnerability allows an attacker to disrupt the normal functioning of a system, making it unavailable to legitimate users. This vulnerability is classified as Improper Resource Shutdown or Release (CWE-404).
RemediationAI
Implement rate limiting and input validation. Use timeout mechanisms for resource-intensive operations. Deploy DDoS protection where applicable.
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Same weakness CWE-404 – Improper Resource Shutdown or Release
View allSame technique Denial Of Service
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External POC / Exploit Code
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