CVE-2026-33787

April 9, 2026, 10:16 p.m.

6.8
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.

Product(s) Impacted

Vendor Product Versions
Juniper
  • Junos Os
  • 23.2, 23.4, 24.2, 24.4, 25.2

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-754
Improper Check for Unusual or Exceptional Conditions
The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
o juniper junos_os 23.2 <23.2R2-S6 / / / / / /
o juniper junos_os 23.4 <23.4R2-S7 / / / / / /
o juniper junos_os 24.2 <24.2R2-S2 / / / / / /
o juniper junos_os 24.4 <24.4R2 / / / / / /
o juniper junos_os 25.2 <25.2R1-S1 / / / / / /
o juniper junos_os 25.2 <25.2R2 / / / / / /

References

https://kb.juniper.net/JSA107873

Tags

CWE-754
[email protected]
2026-04-09
CVE-2026-33787

CVSS Score

6.8 / 10

CVSS Data - 4.0

  • Attack Vector: LOCAL
  • Attack Complexity: LOW
  • Attack Requirements: NONE
  • Privileges Required: LOW
  • User Interaction: NONE
  • Scope:
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: HIGH
  • Exploit Maturity: NOT_DEFINED

    • 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:M/U:X

    View Vector String

Timeline

Published: April 9, 2026, 10:16 p.m.
Last Modified: April 9, 2026, 10:16 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.