CVE-2024-39564Network attack vector

Routing-process crash via malformed BGP path attribute

Published Feb 5, 2025 · Updated Feb 26, 2025

Double free in Juniper Networks Junos OS 22.4 and Junos OS Evolved 22.4 allows remote attackers to crash rpd via a BGP update. While logging a malformed BGP path attribute, rpd frees the memory allocated for the bad-attribute log twice. An established BGP session must deliver the crafted update; the resulting routing-process crash interrupts service.

CVSS severity8.7
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double free in Juniper Networks Junos OS 22.4 and Junos OS Evolved 22.4 allows remote attackers to crash rpd via a BGP update. While logging a malformed BGP path attribute, rpd frees the memory allocated for the bad-attribute log twice. An established BGP session must deliver the crafted update; the resulting routing-process crash interrupts service.

The record

CVE
CVE-2024-39564
Published
Feb 5, 2025
Updated
Feb 26, 2025
Vendor
Juniper Networks
Product
Junos OS Evolved
Classifications
CWE-415, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2025Record 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=22.4 <22.4R3-S3-EVO

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Juniper Networks · Junos OS Evolvedversion=22.4 <22.4R3-S3-EVO
Juniper Networks · Junos OSversion=22.4 <22.4R3-S4

Published CVSS scores

7.5Juniper Networks, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7Juniper Networks, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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:X/R:U/V:X/RE:X/U:X

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.

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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-415Double Free
T1499Endpoint Denial of Service

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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