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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Juniper Networks | Junos OS Evolved | < 21.2R3-S8-EVO, 21.4-EVO – < 21.4R3-S7-EVO, 22.2-EVO – < 22.2R3-S4-EVO, 22.3-EVO – < 22.3R3-S3-EVO, 22.4-EVO – < 22.4R3-S2-EVO, 23.2-EVO – < 23.2R2-EVO | 21.2R3-S8-EVO |
Advisories 2
- NCSC-2026-0108 Kwetsbaarheid verholpen in Juniper Networks Junos OS Evolved NCSC-NL (Netherlands) · Apr 10, 2026
- WID-SEC-2026-1022 Juniper Patchday April 2026: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 9, 2026
References
- https://kb.juniper.net/JSA107806 vendor-advisory