CVE-2024-30409

Junos OS and Junos OS Evolved: Higher CPU consumption on routing engine leads to Denial of Service (DoS).

Description

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.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue:  Junos OS: 22.1R1-S2, 22.1R2, 22.2R1, 22.2R2, 22.3R1, 22.4R1, and all subsequent releases. Junos OS Evolved: 22.1R1-S2-EVO, 22.1R2-EVO, 22.2R1-EVO, 22.2R2-EVO, 22.3R1-EVO, 22.4R1-EVO, and all subsequent releases.

Workaround:

  • There are no known workarounds for this issue

Category

6.9
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.05%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Affected: Juniper Networks Junos OS Evolved
Published at:
Updated at:

References

Link Tags
https://supportportal.juniper.net/JSA79099 vendor advisory
https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N issue tracking technical description

Frequently Asked Questions

What is the severity of CVE-2024-30409?
CVE-2024-30409 has been scored as a medium severity vulnerability.
How to fix CVE-2024-30409?
To fix CVE-2024-30409: The following software releases have been updated to resolve this specific issue:  Junos OS: 22.1R1-S2, 22.1R2, 22.2R1, 22.2R2, 22.3R1, 22.4R1, and all subsequent releases. Junos OS Evolved: 22.1R1-S2-EVO, 22.1R2-EVO, 22.2R1-EVO, 22.2R2-EVO, 22.3R1-EVO, 22.4R1-EVO, and all subsequent releases.
Is CVE-2024-30409 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-30409 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-30409?
CVE-2024-30409 affects Juniper Networks Junos OS, Juniper Networks Junos OS Evolved.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.