What is CVE-2026-33787?

CVE-2026-33787 is a medium-severity vulnerability in Juniper Networks Junos Os, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 5.5/10. Published 2026-04-09.

How severe is CVE-2026-33787?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Juniper Networks Junos Os

CVE-2026-33787

An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis control daemon (chassisd) of Juniper Networks Junos OS on SRX1500, SRX4100, SRX4200 and SRX4600 allows a local attacker with low privileges to cause a com…

EPSS: 0.000 (4.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Juniper Networks Junos Os — versions 0, 23.4, 24.2

Weakness classification (CWE)

CWE-754 — Improper Check for Unusual or Exceptional Conditions

References

kb.juniper.net/JSA107873 (vendor-advisory)

Frequently asked questions

What is CVE-2026-33787?: CVE-2026-33787 is a medium-severity vulnerability in Juniper Networks Junos Os, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 5.5/10. Published 2026-04-09.
How severe is CVE-2026-33787?: Medium severity. CVSS v3 base score is 5.5 out of 10.