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CVE-2026-33802

Junos OS: EX Series: Unauthorized users can execute service-impacting CLI command

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 23.2R2-S6, 23.4R2-S8, 24.2R2-S4, 24.4R2-S3, 25.2R2, and 1 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Juniper Networks Junos OS

    From 23.2R2 · fixed in 23.2R2-S6; From 23.4 · fixed in 23.4R2-S8; From 24.2 · fixed in 24.2R2-S4; From 24.4 · fixed in 24.4R2-S3; From 25.2 · fixed in 25.2R2; From 25.4 · fixed in 25.4R1-S1

References 1

supportportal.juniper.net