SB2026050822 - Local denial of service in Junos OS on SRX1500, SRX4100, SRX4200 and SRX4600 devices
Published: May 8, 2026
Security Bulletin ID
SB2026050822
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Check for Unusual or Exceptional Conditions (CVE-ID: CVE-2026-33787)
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper check for unusual or exceptional conditions in the chassis control daemon (chassisd) when executing a specific 'show chassis' CLI command. A local user can execute the affected command to cause a denial of service.
The daemon crash and restart causes a momentary impact to traffic until all modules are online again.
Remediation
Install update from vendor's website.