CVE-2026-33786

An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis control daemon (chassisd) of Juniper Networks Junos OS on SRX1600, SRX2300 and SRX4300 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 SRX1600, SRX2300 and SRX4300: * 24.4 versions before 24.4R1-S3, 24.4R2. This issue does not affect Junos OS versions before 24.4R1.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://kb.juniper.net/JSA107810	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:juniper:junos:24.4:-::::::
	cpe:2.3:o:juniper:junos:24.4:r1::::::
	cpe:2.3:o:juniper:junos:24.4:r1-s2::::::
	cpe:2.3:o:juniper:junos:24.4:r2::::::

OR	cpe:2.3:h:juniper:srx1600:-:::::::*
	cpe:2.3:h:juniper:srx2300:-:::::::*
	cpe:2.3:h:juniper:srx4300:-:::::::*

History

17 Apr 2026, 17:14

Type	Values Removed	Values Added
References	~~() https://kb.juniper.net/JSA107810 -~~	() https://kb.juniper.net/JSA107810 - Mitigation, Vendor Advisory
First Time		Juniper srx1600 Juniper junos Juniper Juniper srx4300 Juniper srx2300
CPE		cpe:2.3:o:juniper:junos:24.4:r1:::::: cpe:2.3:o:juniper:junos:24.4:r2:::::: cpe:2.3:h:juniper:srx4300:-:::::::* cpe:2.3:h:juniper:srx1600:-:::::::* cpe:2.3:o:juniper:junos:24.4:r1-s2:::::: cpe:2.3:o:juniper:junos:24.4:-:::::: cpe:2.3:h:juniper:srx2300:-:::::::*

09 Apr 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-09 22:16

Updated : 2026-04-17 17:14

NVD link : CVE-2026-33786

Mitre link : CVE-2026-33786

CVE.ORG link : CVE-2026-33786

JSON object : View

Products Affected

juniper

srx4300
srx2300
srx1600
junos

CWE

CWE-754

Improper Check for Unusual or Exceptional Conditions

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