# CVE-2024-47506

## Summary

- **CVE ID:** CVE-2024-47506
- **Severity:** HIGH
- **CVSS Score:** 8.2 (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/R:A/RE:M)
- **CWE:** CWE-833
- **Published:** Oct 11, 2024
- **Last Modified:** Mar 13, 2026

## Description

A Deadlock vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).

When a large amount of traffic is processed by ATP Cloud inspection, a deadlock can occur which will result in a PFE crash and restart. Whether the crash occurs, depends on system internal timing that is outside the attackers control.



This issue affects Junos OS on SRX Series:



  *  All versions before 21.3R3-S1,
  *  21.4 versions before 21.4R3,
  *  22.1 versions before 22.1R2,
  *  22.2 versions before 22.2R1-S2, 22.2R2.

## Affected Products

- Juniper Networks — Junos OS (0)
- Juniper Networks — Junos OS (21.4)
- Juniper Networks — Junos OS (22.1)
- Juniper Networks — Junos OS (22.2)

## References

- [CNA](https://supportportal.juniper.net/JSA88137)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.29%
- **EPSS Percentile:** 21.2

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