Skip to main content

Junos Os Evolved CVE-2024-39519

HIGH
Improper Check for Unusual or Exceptional Conditions (CWE-754)
2024-07-11 sirt@juniper.net
Information Disclosure Juniper Junos Os Evolved
7.1
CVSS 4.0 · Vendor: juniper
Share

Severity by source

Vendor (juniper) PRIMARY
7.1 HIGH
CVSS:4.0/AV:A/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:X/V:X/RE:X/U:X

Primary rating from Vendor (juniper) · only source for this CVE.

CVSS VectorVendor: juniper

CVSS:4.0/AV:A/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:X/V:X/RE:X/U:X
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

1
CVE Published
Jul 11, 2024 - 16:15 cve.org
HIGH 7.1

DescriptionCVE.org

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated, adjacent attacker to cause a

Denial-of-Service (DoS).

On all ACX 7000 Series platforms running

Junos OS Evolved, and configured with IRBs, if a Customer Edge device (CE) device is dual homed to two Provider Edge devices (PE) a traffic loop will occur when the CE sends multicast packets. This issue can be triggered by IPv4 and IPv6 traffic.

This issue affects Junos OS Evolved:

All versions from 22.2R1-EVO and later versions before 22.4R2-EVO,

This issue does not affect Junos OS Evolved versions before 22.1R1-EVO.

AnalysisAI

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated, adjacent. Rated high severity (CVSS 7.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-754. An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS). On all ACX 7000 Series platforms running Junos OS Evolved, and configured with IRBs, if a Customer Edge device (CE) device is dual homed to two Provider Edge devices (PE) a traffic loop will occur when the CE sends multicast packets. This issue can be triggered by IPv4 and IPv6 traffic.2R1-EVO and later versions before 22.4R2-EVO, This issue does not affect Junos OS Evolved versions before 22.1R1-EVO. Affected products include: Juniper Junos Os Evolved. Version information: before 22.4.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

More in Junos Os Evolved

View all
CVE-2021-31353 HIGH POC
7.5 Oct 19

An Improper Handling of Exceptional Conditions vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an
CVE-2024-39553 MEDIUM POC
6.9 Jul 11

An Exposure of Resource to Wrong Sphere vulnerability in the sampling service of Juniper Networks Junos OS Evolved allow
CVE-2021-0211 CRITICAL
10.0 Jan 15

An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Routing Protoc
CVE-2022-22215 MEDIUM POC
5.5 Jul 20

A Missing Release of File Descriptor or Handle after Effective Lifetime vulnerability in plugable authentication module

CVE-2023-44182 HIGH
8.8 Oct 13

An Unchecked Return Value vulnerability in the user interfaces to the Juniper Networks Junos OS and Junos OS Evolved, th
CVE-2023-28983 HIGH
8.8 Apr 17

An OS Command Injection vulnerability in gRPC Network Operations Interface (gNOI) server module of Juniper Networks Juno
CVE-2022-22239 HIGH
8.8 Oct 18

An Execution with Unnecessary Privileges vulnerability in Management Daemon (mgd) of Juniper Networks Junos OS Evolved a
CVE-2021-31354 HIGH
8.8 Oct 19

An Out Of Bounds (OOB) access vulnerability in the handling of responses by a Juniper Agile License (JAL) Client in Juni
CVE-2021-31350 HIGH
8.8 Oct 19

An Improper Privilege Management vulnerability in the gRPC framework, used by the Juniper Extension Toolkit (JET) API on
CVE-2021-0208 HIGH
8.8 Jan 15

An improper input validation vulnerability in the Routing Protocol Daemon (RPD) service of Juniper Networks Junos OS all
CVE-2025-30651 HIGH
8.7 Apr 09

A Buffer Access with Incorrect Length Value vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos
CVE-2024-47502 HIGH
8.7 Oct 11

An Allocation of Resources Without Limits or Throttling vulnerability in the kernel of Juniper Networks Junos OS Evolved

Same weakness CWE-754 – Improper Check for Unusual or Exceptional Conditions

View all
CVE-2024-4367 HIGH POC
8.8
CVE-2017-11144 HIGH
7.5
CVE-2026-24054 CRITICAL POC
10.0
CVE-2023-37303 CRITICAL POC
9.8
CVE-2017-17085 HIGH POC
7.5
CVE-2020-6385 HIGH POC
8.8
CVE-2023-21102 HIGH POC
7.8
CVE-2021-29607 HIGH POC
7.8

Same technique Information Disclosure

View all
CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2015-1701 HIGH POC
7.8
CVE-2017-0147 HIGH POC
7.5
CVE-2014-6324 HIGH POC
8.8
CVE-2023-7028 CRITICAL POC
10.0
CVE-2017-0213 HIGH POC
7.3

Share

CVE-2024-39519 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy