Vulnerability in Juniper Junos OS Evolved

CVE-2024-39534

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.

EPSS: 0.007 (48.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2024-39534?
CVE-2024-39534 is a medium-severity vulnerability in Juniper Junos OS Evolved, classified under Incorrect Comparison. CVSS score: 5.4/10. Published 2024-10-11.
How severe is CVE-2024-39534?
Medium severity. CVSS v3 base score is 5.4 out of 10.