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.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References