Junos OS (SRX firewalls)
CVE-2024-30409: Higher CPU consumption on routing engine leads to Denial of Service (DoS).
An Improper Check for Unusual or Exceptional Conditions vulnerability in telemetry processing of Juniper Networks Junos OS and Junos OS Evolved allows a network-based authenticated attacker to cause the forwarding information base telemetry daemon (fibtd) to crash, leading to a limited Denial of Service.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Junos OS 22.1 | 22.1R1-S2, 22.1R2 or later |
| Junos OS Evolved 22.1-EVO | 22.1R1-S2-EVO, 22.1R2-EVO or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
An Improper Check for Unusual or Exceptional Conditions vulnerability in telemetry processing of Juniper Networks Junos OS and Junos OS Evolved allows a network-based authenticated attacker to cause the forwarding information base telemetry daemon (fibtd) to crash, leading to a limited Denial of Service.
This issue affects Juniper Networks
Junos OS: * from 22.1 before 22.1R1-S2, 22.1R2.
Junos OS Evolved: * from 22.1 before 22.1R1-S2-EVO, 22.1R2-EVO.
Am I affected?
This issue is seen if the following conditions are met: * Telemetry subscription is active and Fib-streaming is enabled.
Workarounds
There are no known workarounds for this issue
Exploitation
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.