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CVE-2026-33787

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

Published: Apr 9, 2026Updated: Apr 17, 2026 Sources: CVE List NVDCWE-754
5.5MEDIUM
NVD MITRE
EPSS Score
0.1%
Top 99.2%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-754

Affected Products

Junos OSJuniper NetworksNetworking Infrastructure
junosjuniperNetworking Infrastructure
juniper networkscommercialUSNetworking Infrastructure
junipercommercialUSNetworking Infrastructureaka juniper networks, juniper networks inc.

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Workaround Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

References

https://kb.juniper.net/JSA107873
kb.juniper.net

Timeline

Published
Apr 9, 2026
Last Updated
Apr 17, 2026

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