Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 50.7%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2024-39530
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cpe:2.3:o:juniper:junos:21.1
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cpe:2.3:o:juniper:junos:21.4
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cpe:2.3:o:juniper:junos:22.2
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cpe:2.3:o:juniper:junos:22.3
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cpe:2.3:o:juniper:junos:22.4