SECUFOCUSNOW
Home›CVE index›CVE-2026-33788
Review reviewHigh

CVE-2026-33788

Juniper Networks Junos OS Evolved, junos os evolved, jnp10k-lc1201

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...

CVSS
8.5
EPSS
0.11%
1.77% percentile
CISA KEV
Not listed
Published
2026.04.10
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.11%
Technical severityCVSS 8.5

Vulnerability overview

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...

Affected product and versions

Product
Juniper Networks Junos OS Evolved, junos os evolved, jnp10k-lc1201
Affected versions
< 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, < 21.2, 21.2, 21.4, 22.2, 22.3, 22.4, 23.2
Fixed versions
21.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Juniper Networks Junos OS Evolved, junos os evolved, jnp10k-lc1201 and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:X/RE:M/U:X
CWE
CWE-306
CVE-2026-33788 — Juniper Networks Junos OS Evolved, junos os evolved, jnp10k-lc1201 | SECUFOCUS NOW