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CVE-2026-33787

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CVE-2026-33787

Published: Apr 9, 2026

Modified: Apr 13, 2026

PUBLISHED

CVSS v3.1

5.5

MEDIUM

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.

VendorProductVersions

Juniper Networks

Junos OS

affected
0 - < 23.2R2-S6
affected
23.4 - < 23.4R2-S7
affected
24.2 - < 24.2R2-S2
affected
24.4 - < 24.4R2
affected
25.2 - < 25.2R1-S1, 25.2R2

Weaknesses (CWE)

CWE-754

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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