# CVE-2026-57025

## Summary

- **CVE ID:** CVE-2026-57025
- **Severity:** MEDIUM
- **CVSS Score:** 6.8 (CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M)
- **CWE:** CWE-466
- **Published:** Jul 9, 2026
- **Last Modified:** Jul 16, 2026

## Description

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' 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.

## Affected Products

- Juniper Networks — Junos OS (0)
- Juniper Networks — Junos OS (23.4)
- Juniper Networks — Junos OS (24.2)
- Juniper Networks — Junos OS (24.4)
- Juniper Networks — Junos OS Evolved (0)
- Juniper Networks — Junos OS Evolved (23.4)
- Juniper Networks — Junos OS Evolved (24.2)
- Juniper Networks — Junos OS Evolved (24.4)

## References

- [CNA](https://supportportal.juniper.net/JSA110085)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.14%
- **EPSS Percentile:** 3.7

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