What is CVE-2026-33779?

CVE-2026-33779 is a medium-severity vulnerability in Juniper Junos, classified under Improper Following of a Certificate's Chain of Trust. CVSS score: 6.5/10. Published 2026-04-09.

How severe is CVE-2026-33779?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Juniper Junos

CVE-2026-33779

An Improper Following of a Certificate's Chain of Trust vulnerability in J-Web of Juniper Networks Junos OS on SRX Series allows a PITM to intercept the communication of the device and get access to confidential information and potentially…

EPSS: 0.001 (2.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Juniper Junos — versions 22.4, 23.2, 23.4
Juniper Srx1500
Juniper Srx1600
Juniper Srx2300
Juniper Srx300
Juniper Srx320
Juniper Srx340
Juniper Srx345
Juniper Srx380
Juniper Srx4100

Weakness classification (CWE)

CWE-296 — Improper Following of a Certificate's Chain of Trust

References

sirt@juniper.net (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-33779?: CVE-2026-33779 is a medium-severity vulnerability in Juniper Junos, classified under Improper Following of a Certificate's Chain of Trust. CVSS score: 6.5/10. Published 2026-04-09.
How severe is CVE-2026-33779?: Medium severity. CVSS v3 base score is 6.5 out of 10.