A Return of Pointer Value Outside of Expected Range vulnerability in the fileio library of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privilged attacker to cause a Denial-of-Service (DoS).
On EX Series, QFX Series and MX Series a low-privileged attacker issuing a specific 'show l2-learning' or 'show ethernet-switching' command will cause an l2ald crash which will lead to a temporary service impact for all layer 2 services until the process has automatically restarted.
This issue affects EX Series, QFX Series, MX Series:
Junos OS:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2,
* 24.4 versions before 24.4R1-S2.
Junos OS Evolved:
* all versions before 23.2R2-S7-EVO,
* 23.4 versions before 23.4R2-S8-EVO,
* 24.2 versions before 24.2R2-EVO,
* 24.4 versions before 24.4R1-S3-EVO.
References
| Link | Resource |
|---|---|
| https://supportportal.juniper.net/JSA110085 | Vendor Advisory |
Configurations
Configuration 1 (hide)
| AND |
|
Configuration 2 (hide)
| AND |
|
History
No history.
Information
Published : 2026-07-09 22:17
Updated : 2026-07-16 09:16
NVD link : CVE-2026-57025
Mitre link : CVE-2026-57025
CVE.ORG link : CVE-2026-57025
JSON object : View
Products Affected
juniper
- ex4600
- ex9214
- mx204
- qfx5250
- ex2300-c
- ex2300
- qfx5700
- ex3400
- junos_os_evolved
- ex4100-h-12t
- qfx10016
- mx301
- ex4300
- qfx10008
- mx240
- ex4650
- ex4100-h
- mx2010
- ex4100-f
- qfx5200
- qfx5220
- qfx5240
- qfx5130
- ex4100
- ex9204
- qfx5120
- mx10004
- mx2008
- mx2020
- qfx5210
- ex4400
- ex4000
- mx304
- qfx5230-64cd
- qfx5140
- mx10008
- mx960
- qfx5110
- qfx5241
- ex9208
- mx480
- junos
CWE
CWE-466
Return of Pointer Value Outside of Expected Range