CVE-2026-33802

Summary

A Missing Authorization vulnerability in the CLI of Juniper Networks Junos OS on EX Series allows a local, authenticated attacker to cause a Denial-of-Service (DoS).

On EX2300, EX4000, EX4100, EX4300-MP (Multigigabit) and EX4400 switches, an authenticated, local attacker with no specific permissions or class can execute a specific, privileged CLI 'request' command which will cause complete traffic impact until the system automatically recovers.

This issue affects Junos OS on EX2300, EX4000, EX4100, EX4300-MP (Multigigabit) and EX4400:

  • 23.2R2 versions before 23.2R2-S6,
  • 23.4 versions before 23.4R2-S8,
  • 24.2 versions before 24.2R2-S4,
  • 24.4 versions before 24.4R2-S3,
  • 25.2 versions before 25.2R2,
  • 25.4 versions before 25.4R1-S1.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OS23.2R2 < 23.2R2-S6affected
Juniper NetworksJunos OS23.4 < 23.4R2-S8affected
Juniper NetworksJunos OS24.2 < 24.2R2-S4affected
Juniper NetworksJunos OS24.4 < 24.4R2-S3affected
Juniper NetworksJunos OS25.2 < 25.2R2affected
Juniper NetworksJunos OS25.4 < 25.4R1-S1affected

Weaknesses

  • CWE-862: CWE-862 Missing Authorization

Workarounds

There are no known workarounds for this issue. To reduce the risk of exploitation use command authorization to limit access to 'request' commands.

References