Riskcovery

CVE-2026-33802

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

State
Published
Severity
6.8 Medium
Published
Jul 9, 2026
Updated
Jul 10, 2026
Reserved
Mar 23, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
4.06.8 MediumCVSS: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:Mjuniper
3.15.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hjuniper

Weaknesses

Affected Products

ProductVersions
Junos OSJuniper Networks
  • 23.2R2 to before 23.2R2-S6Affected
  • 23.4 to before 23.4R2-S8Affected
  • 24.2 to before 24.2R2-S4Affected
  • 24.4 to before 24.4R2-S3Affected
  • 25.2 to before 25.2R2Affected
  • 25.4 to before 25.4R1-S1Affected

References

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