CVE-2024-47501

FPC restart via packet-forwarding-engine null dereference

Published Oct 11, 2024 · Updated Oct 11, 2024

NULL pointer dereference in the Junos OS packet forwarding engine allows local users to crash and restart affected FPCs using show commands. Juniper has not disclosed which show commands or the packet-forwarding-engine path that dereferences the null pointer. A low-privileged authenticated session plus VPLS or Junos Fusion is required; all FPCs hosting VPLS sessions or satellite links restart.

CVSS severity6.8
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the Junos OS packet forwarding engine allows local users to crash and restart affected FPCs using show commands. Juniper has not disclosed which show commands or the packet-forwarding-engine path that dereferences the null pointer. A low-privileged authenticated session plus VPLS or Junos Fusion is required; all FPCs hosting VPLS sessions or satellite links restart.

The record

CVE
CVE-2024-47501
Published
Oct 11, 2024
Updated
Oct 11, 2024
Vendor
Juniper Networks
Product
Junos OS
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

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=0 <21.2R3-S1
  2. Affected versionversion=21.3 <21.3R3
  3. Affected versionversion=21.4 <21.4R2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Juniper Networks · Junos OSversion=0 <21.2R3-S1; version=21.3 <21.3R3; version=21.4 <21.4R2

Published CVSS scores

6.8Juniper Networks, Inc.CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:X/RE:M/U:X
5.5Juniper Networks, Inc.CVSS:3.1/AV:L/AC:L/PR:L/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
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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