CVE-2025-30647
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Juniper Networks | Junos OS | 0 < 21.2R3-S9 | affected |
| Juniper Networks | Junos OS | 21.4 < 21.4R3-S10 | affected |
| Juniper Networks | Junos OS | 22.2 < 22.2R3-S6 | affected |
| Juniper Networks | Junos OS | 22.4 < 22.4R3-S5 | affected |
| Juniper Networks | Junos OS | 23.2 < 23.2R2-S3 | affected |
| Juniper Networks | Junos OS | 23.4 < 23.4R2-S3 | affected |
| Juniper Networks | Junos OS | 24.2 < 24.2R2 | affected |
Weaknesses
- CWE-401: CWE-401 Missing Release of Memory after Effective Lifetime
Workarounds
There are no known workarounds for this issue.
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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