CVE-2024-47504Network attack vector

Flowd crash via malformed packet validation

Published Oct 11, 2024 · Updated Oct 11, 2024

Improper input validation in Juniper Networks Junos OS on SRX5000 Series allows remote attackers to crash and restart flowd via a malformed packet. The packet forwarding engine fails to reject a specifically malformed network packet, causing flowd to terminate and automatically restart. Only non-clustered SRX5000 devices are exposed; the crash temporarily interrupts packet forwarding without reported data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Juniper Networks Junos OS on SRX5000 Series allows remote attackers to crash and restart flowd via a malformed packet. The packet forwarding engine fails to reject a specifically malformed network packet, causing flowd to terminate and automatically restart. Only non-clustered SRX5000 devices are exposed; the crash temporarily interrupts packet forwarding without reported data disclosure or modification.

The record

CVE
CVE-2024-47504
Published
Oct 11, 2024
Updated
Oct 11, 2024
Vendor
Juniper Networks
Product
Junos OS
Classifications
CWE-1287, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=22.2 <22.2r3-s5
  2. Affected versionversion=22.2 <22.2R3-S5
  3. Affected versionversion=22.3 <22.3r3-s4
  4. Affected versionversion=22.3 <22.3R3-S4
  5. Affected versionversion=22.4 <22.4r3-s4
  6. Affected versionversion=22.4 <22.4R3-S4
  7. Affected versionversion=23.2 <23.2r2-s2
  8. Affected versionversion=23.2 <23.2R2-S2
  9. Affected versionversion=23.4 <23.4r2-s1
  10. Affected versionversion=23.4 <23.4R2-S1
  11. Affected versionversion=24.2 <24.2r1-s1
  12. Affected versionversion=24.2 <24.2R1-S1, 24.2R2
  13. Affected versionversion=24.2 <24.2r2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Juniper Networks · Junos OSversion=22.2 <22.2r3-s5; version=22.2 <22.2R3-S5; version=22.3 <22.3r3-s4; version=22.3 <22.3R3-S4; version=22.4 <22.4r3-s4; version=22.4 <22.4R3-S4; version=23.2 <23.2r2-s2; version=23.2 <23.2R2-S2; version=23.4 <23.4r2-s1; version=23.4 <23.4R2-S1; version=24.2 <24.2r1-s1; version=24.2 <24.2R1-S1, 24.2R2; version=24.2 <24.2r2

Published CVSS scores

7.5Juniper NetworksCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7Juniper NetworksCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M

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-1287Improper Validation of Specified Type of Input
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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