# CVE-2024-47491

## Summary

- **CVE ID:** CVE-2024-47491
- **Severity:** HIGH
- **CVSS Score:** 8.2 (CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L)
- **CWE:** CWE-755
- **Published:** Oct 11, 2024
- **Last Modified:** Mar 13, 2026

## Description

An Improper Handling of Exceptional Conditions vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause Denial of Service (DoS).

When a BGP UPDATE with malformed path attribute is received over an established BGP session, rpd crashes and restarts. 

Continuous receipt of a BGP UPDATE with a specifically malformed path attribute will create a sustained Denial of Service (DoS) condition for impacted devices. While this issue affects systems running 32-bit and 64-bit systems, the probability of impact on 64-bit system is extremely low. 
According to  KB25803  https://supportportal.juniper.net/s/article/Junos-How-to-check-if-Junos-OS-is-64-or-32-bit-on-a-router , customers can confirm 32-bit or 64-bit system via the ' show version detail ' command:



     lab@router> show version detail| match 32
     JUNOS 32-bit kernel Software Suite 

     lab@router> show version detail| match 64
     JUNOS 64-bit kernel Software Suite 


This issue affects:

 Juniper Networks Junos OS: 

  *  All versions before 21.4R3-S8, 
  *  from 22.2 before 22.2R3-S4, 
  *  from 22.4 before 22.4R3-S3, 
  *  from 23.2 before 23.2R2-S1, 
  *  from 23.4 before 23.4R1-S2, 23.4R2.


 Juniper Networks Junos OS Evolved:   *  All versions before 21.4R3-S8-EVO, 
  *  from 22.2 before 22.2R3-S4-EVO, 
  *  from 22.4 before 22.4R3-S3-EVO,
  *  from 23.2 before 23.2R2-S1-EVO, 
  *  from 23.4 before 23.4R1-S2-EVO, 23.4R2-EVO.

## Affected Products

- Juniper Networks — Junos OS (0)
- Juniper Networks — Junos OS (22.2)
- Juniper Networks — Junos OS (22.4)
- Juniper Networks — Junos OS (23.2)
- Juniper Networks — Junos OS (23.4)
- Juniper Networks — Junos OS Evolved (0)
- Juniper Networks — Junos OS Evolved (22.2)
- Juniper Networks — Junos OS Evolved (22.4)
- Juniper Networks — Junos OS Evolved (23.2)
- Juniper Networks — Junos OS Evolved (23.4)

## References

- [CNA](https://supportportal.juniper.net/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.60%
- **EPSS Percentile:** 46.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._