CVE-2026-33787CWE-754

Junos OS: SRX1500, SRX4100, SRX4200, SRX4600: When a specific show command is executed chassisd crashes

Medium · published April 9, 2026

CVSS v4.0
6.8
EPSS
0%
Percentile
2.6
In the wild
Unconfirmed
What it is

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 complete Denial of Service (DoS).

When a specific 'show chassis' CLI command is executed, chassisd crashes and restarts which causes a momentary impact to all traffic until all modules are online again.

This issue affects Junos OS on SRX1500, SRX4100, SRX4200 and SRX4600:

* 23.2 versions before 23.2R2-S6,

* 23.4 versions before 23.4R2-S7

* 24.2 versions before 24.2R2-S2,

* 24.4 versions before 24.4R2,

* 25.2 versions before 25.2R1-S1, 25.2R2.

The record
Technical detail
CVSS v4.0
6.8 · MEDIUM
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/RE:M
EPSS
0.00133 · 2.6th percentile
Weakness
CWE-754 · Improper Check for Unusual or Exceptional Conditions
Published
2026-04-09T21:37Z
EPSS history
Timeline
  • 09 APR 21:37Z
    Junos OS: SRX1500, SRX4100, SRX4200, SRX4600: When a specific show command is executed chassisd crashes
    cvelistv5