A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on MX Series allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS).
In a subscriber management scenario, login/logout activity triggers a memory leak, and the leaked memory gradually increments and eventually results in a crash.
user@host> show chassis fpc
Temp CPU Utilization (%) CPU Utilization (%) Memory Utilization (%)
Slot State (C) Total Interrupt 1min 5min 15min DRAM (MB) Heap Buffer
2 Online 36 10 0 9 8 9 32768 26 0
This issue affects Junos OS on MX Series:
* All versions before 21.2R3-S9
* from 21.4 before 21.4R3-S10
* from 22.2 before 22.2R3-S6
* from 22.4 before 22.4R3-S5
* from 23.2 before 23.2R2-S3
* from 23.4 before 23.4R2-S3
* from 24.2 before 24.2R2.
References
| Link | Resource |
|---|---|
| https://supportportal.juniper.net/JSA96457 | Vendor Advisory |
Configurations
Configuration 1 (hide)
| AND |
|
History
No history.
Information
Published : 2025-04-09 20:15
Updated : 2026-01-26 19:32
NVD link : CVE-2025-30647
Mitre link : CVE-2025-30647
CVE.ORG link : CVE-2025-30647
JSON object : View
Products Affected
juniper
- mx2010
- mx960
- mx2020
- mx304
- junos
- mx2008
- mx10008
- mx204
- mx480
- mx10004
- mx240
CWE
CWE-401
Missing Release of Memory after Effective Lifetime