---
cve: "CVE-2026-57025"
severity: "MEDIUM"
cvss: 6.8
epss: "10%"
vendor: "Juniper Networks"
kev: false
exploited: false
published: "2026-07-09 22:17:07"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-12T19:19:38+02:00"
---

# CVE-2026-57025

> 6.8 MEDIUM

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Referenzen

- <https://supportportal.juniper.net/JSA110085>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-57025) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_