PT-2026-56966 · Juniper Networks · Junos

Published 2026-07-09 · Updated 2026-07-09 · CVE-2026-33802

NVD

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-33802

Affected Products

Junos

References · 2

• https://supportportal.juniper.net/JSA110077 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33802 · Security Note