Missing Auth in Juniper EX CLI, DoS till 25.4R1-S1
CVE-2026-33802 Published on July 9, 2026
Junos OS: EX Series: Unauthorized users can execute service-impacting CLI command
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.
Vulnerability Analysis
CVE-2026-33802 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-33802 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-33802
Want to know whenever a new CVE is published for Juniper Networks Junos? stack.watch will email you.
Affected Versions
Juniper Networks Junos OS:- Version 23.2R2 and below 23.2R2-S6 is affected.
- Version 23.4 and below 23.4R2-S8 is affected.
- Version 24.2 and below 24.2R2-S4 is affected.
- Version 24.4 and below 24.4R2-S3 is affected.
- Version 25.2 and below 25.2R2 is affected.
- Version 25.4 and below 25.4R1-S1 is affected.