Return of Pointer Value Vulnerability in Junos OS from Juniper Networks
CVE-2026-57025

6.8MEDIUM

Key Information:

Vendor

Juniper Networks
Status
Junos Os
Junos Os Evolved
Vendor
CVE Published:
9 July 2026

Badges

👾 Exploit Exists

What is CVE-2026-57025?

A vulnerability in the fileio library of Juniper Networks' Junos OS and Junos OS Evolved enables a local attacker with low privileges to execute a specific command that triggers an l2ald process crash. This disruption impacts all layer 2 services, causing a temporary Denial-of-Service condition until the l2ald process restarts automatically. The issue affects various hardware series, including EX, QFX, and MX, with numerous specific version vulnerabilities outlined.

Affected Version(s)

Junos OS Evolved 0 < 23.2R2-S7-EVO

Junos OS Evolved 23.4 < 23.4R2-S8-EVO

Junos OS Evolved 24.2 < 24.2R2-EVO

References

https://supportportal.juniper.net/JSA110085
vendor-advisory

CVSS V4

Score:
6.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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