CVE-2024-47506Network attack vector

PFE restart via ATP inspection deadlock

Published Oct 11, 2024 · Updated Oct 11, 2024

Deadlock in the Junos OS PFE on SRX Series devices allows remote attackers to crash and restart the PFE through ATP Cloud inspection. The packet-forwarding engine can deadlock while ATP Cloud inspection processes a large traffic volume, forcing the PFE to crash and restart. Exploitation requires ATP Cloud inspection and timing outside the attacker's control; the reported consequence is a transient forwarding interruption.

CVSS severity8.2
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deadlock in the Junos OS PFE on SRX Series devices allows remote attackers to crash and restart the PFE through ATP Cloud inspection. The packet-forwarding engine can deadlock while ATP Cloud inspection processes a large traffic volume, forcing the PFE to crash and restart. Exploitation requires ATP Cloud inspection and timing outside the attacker's control; the reported consequence is a transient forwarding interruption.

The record

CVE
CVE-2024-47506
Published
Oct 11, 2024
Updated
Oct 11, 2024
Vendor
Juniper Networks
Product
Junos OS
Classifications
CWE-833, CAPEC-25, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 11, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <21.3R3-S1
  2. Affected versionversion=21.4 <21.4R3
  3. Affected versionversion=22.1 <22.1R2
  4. Affected versionversion=22.2 <22.2R1-S2, 22.2R2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Juniper Networks · Junos OSversion=0 <21.3R3-S1; version=21.4 <21.4R3; version=22.1 <22.1R2; version=22.2 <22.2R1-S2, 22.2R2

Published CVSS scores

8.2Juniper Networks, Inc.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
5.9Juniper Networks, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-833Deadlock
CAPEC-25Forced Deadlock
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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