What is CVE-2026-33788?

CVE-2026-33788 is a high-severity vulnerability in Juniper Networks Junos Os Evolved, classified under Missing Authentication for Critical Function. CVSS score: 7.8/10. Published 2026-04-09.

How severe is CVE-2026-33788?

High severity. CVSS v3 base score is 7.8 out of 10.

Auth bypass in Juniper Networks Junos Os Evolved

CVE-2026-33788

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 FP…

Vulnerability class: Broken Authentication

EPSS: 0.000 (5.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Juniper Networks Junos Os Evolved — versions 0, 21.4-EVO, 22.2-EVO

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

kb.juniper.net/JSA107806 (vendor-advisory)

Frequently asked questions

What is CVE-2026-33788?: CVE-2026-33788 is a high-severity vulnerability in Juniper Networks Junos Os Evolved, classified under Missing Authentication for Critical Function. CVSS score: 7.8/10. Published 2026-04-09.
How severe is CVE-2026-33788?: High severity. CVSS v3 base score is 7.8 out of 10.