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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.

PUBLISHED Reserved 2026-03-23 | Published 2026-04-09 | Updated 2026-04-13 | Assigner juniper




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

HIGH: 8.5CVSS: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

Problem types

CWE-306 Missing Authentication for Critical Function

Product status

Default status
unaffected

Any version before 21.2R3-S8-EVO
affected

21.4-EVO (semver) before 21.4R3-S7-EVO
affected

22.2-EVO (semver) before 22.2R3-S4-EVO
affected

22.3-EVO (semver) before 22.3R3-S3-EVO
affected

22.4-EVO (semver) before 22.4R3-S2-EVO
affected

23.2-EVO (semver) before 23.2R2-EVO
affected

References

kb.juniper.net/JSA107806 vendor-advisory

cve.org (CVE-2026-33788)

nvd.nist.gov (CVE-2026-33788)

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