CVE-2026-33788CWE-306

Junos OS Evolved: Local, authenticated attacker can gain privileged access to FPCs

High · published April 9, 2026

CVSS v4.0
8.5
EPSS
0%
Percentile
5.6
In the wild
Unconfirmed
What it is

A Missing Authentication for Critical Function vulnerability in the Flexible PIC Concentrators (FPCs) of Juniper Networks Junos OS Evolved on PTX Series allows a local, authenticated attacker with low privileges to gain direct access to FPCs installed in the device.

A local user with low privileges can gain direct access to the installed FPCs as a high privileged user, which can potentially lead to a full compromise of the affected component.

This issue affects Junos OS Evolved on PTX10004, PTX10008, PTX100016, with JNP10K-LC1201 or JNP10K-LC1202:

* All versions before 21.2R3-S8-EVO,

* 21.4-EVO versions before 21.4R3-S7-EVO,

* 22.2-EVO versions before 22.2R3-S4-EVO,

* 22.3-EVO versions before 22.3R3-S3-EVO,

* 22.4-EVO versions before 22.4R3-S2-EVO,

* 23.2-EVO versions before 23.2R2-EVO.

The record
Technical detail
CVSS v4.0
8.5 · HIGH
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/AU:Y/R:U/RE:M
EPSS
0.00167 · 5.6th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-04-09T21:27Z
EPSS history
Timeline
  • 09 APR 21:27Z
    Junos OS Evolved: Local, authenticated attacker can gain privileged access to FPCs
    cvelistv5