What is CVE-2026-33779?

CVE-2026-33779 is a medium-severity vulnerability in Juniper Networks Junos Os, 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 Networks Junos Os

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: 0.000 (7.7th 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 Networks Junos Os — versions 0, 23.2, 23.4

Weakness classification (CWE)

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

References

kb.juniper.net/JSA107823 (vendor-advisory)

Frequently asked questions

What is CVE-2026-33779?: CVE-2026-33779 is a medium-severity vulnerability in Juniper Networks Junos Os, 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.