Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2024-39530

An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis management daemon (chassisd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a

Denial-of-Service (DoS).

If an attempt is made to access specific sensors on platforms not supporting these sensors, either via GRPC or netconf, chassisd will crash and restart leading to a restart of all FPCs and thereby a complete outage.

This issue affects Junos OS:

  • 21.4 versions from 21.4R3 before 21.4R3-S5,
  • 22.1 versions from 22.1R3 before 22.1R3-S4,
  • 22.2 versions from 22.2R2 before 22.2R3,
  • 22.3 versions from 22.3R1 before 22.3R2-S2, 22.3R3,
  • 22.4 versions from 22.4R1 before 22.4R2.

This issue does not affect Junos OS versions earlier than 21.4.

  • Published: Jul 11, 2024
  • Updated: May 4, 2025
  • CVE: CVE-2024-39530
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWEs:

Software From Fixed in
juniper / junos 21.4-r3 21.4-r3.x
juniper / junos 21.4-r3-s1 21.4-r3-s1.x
juniper / junos 21.4-r3-s2 21.4-r3-s2.x
juniper / junos 21.4-r3-s3 21.4-r3-s3.x
juniper / junos 21.4-r3-s4 21.4-r3-s4.x
juniper / junos 21.1-r3 21.1-r3.x
juniper / junos 21.1-r3-s1 21.1-r3-s1.x
juniper / junos 21.1-r3-s2 21.1-r3-s2.x
juniper / junos 21.1-r3-s3 21.1-r3-s3.x
juniper / junos 22.2-r2 22.2-r2.x
juniper / junos 22.2-r2-s1 22.2-r2-s1.x
juniper / junos 22.2-r2-s2 22.2-r2-s2.x
juniper / junos 22.3-r1 22.3-r1.x
juniper / junos 22.3-r2 22.3-r2.x
juniper / junos 22.3-r1-s1 22.3-r1-s1.x
juniper / junos 22.3-r1-s2 22.3-r1-s2.x
juniper / junos 22.3-r2-s1 22.3-r2-s1.x
juniper / junos 22.4-r1 22.4-r1.x
juniper / junos 22.4-r1-s1 22.4-r1-s1.x
juniper / junos 22.4-r1-s2 22.4-r1-s2.x