CVE-2024-39534

MEDIUM

Published Oct 11, 2024 Modified Jan 23, 2026 CWE-697

Description

An Incorrect Comparison vulnerability in the local address verification API of Juniper Networks Junos OS Evolved allows an unauthenticated network-adjacent attacker to create sessions or send traffic to the device using the network and broadcast address of the subnet assigned to an interface. This is unintended and unexpected behavior and can allow an attacker to bypass certain compensating controls, such as stateless firewall filters. This issue affects Junos OS Evolved: * All versions before 21.4R3-S8-EVO, * 22.2-EVO before 22.2R3-S4-EVO, * 22.3-EVO before 22.3R3-S4-EVO, * 22.4-EVO before 22.4R3-S3-EVO, * 23.2-EVO before 23.2R2-S1-EVO, * 23.4-EVO before 23.4R1-S2-EVO, 23.4R2-EVO.

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CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness Type (CWE)

CWE-697 CWE-697

Affected Products

Vendor	Product	Versions
juniper	junos_os_evolved	< 21.4
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All
juniper	junos_os_evolved	All

References

Advisories & Patches

https://supportportal.juniper.net/JSA88105

Frequently Asked Questions

What is CVE-2024-39534? +

How severe is CVE-2024-39534? +

CVE-2024-39534 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-39534? +

CVE-2024-39534 affects products from juniper, specifically: junos_os_evolved. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-39534? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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