Riskcovery

CVE-2026-33788

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

State
Published
Severity
8.5 High
Published
Apr 9, 2026
Updated
Apr 13, 2026
Reserved
Mar 23, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
4.08.5 HighCVSS: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:Mjuniper
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hjuniper

Weaknesses

  • CWE-306 Missing Authentication for Critical Function

Affected Products

ProductVersions
Junos OS EvolvedJuniper Networks
  • before 21.2R3-S8-EVOAffected
  • 21.4-EVO to before 21.4R3-S7-EVOAffected
  • 22.2-EVO to before 22.2R3-S4-EVOAffected
  • 22.3-EVO to before 22.3R3-S3-EVOAffected
  • 22.4-EVO to before 22.4R3-S2-EVOAffected
  • 23.2-EVO to before 23.2R2-EVOAffected

References

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