What’s Vulnerable › Vulnerabilities

CVE-2024-39512: Junos OS Evolved: User is not logged out when the console cable is disconnected

• Severity: medium (CVSS 6.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-10 · updated 2026-06-17
• Weakness: CWE-1263

Description

An Improper Physical Access Control vulnerability in the console port control of Juniper Networks Junos OS Evolved allows an attacker with physical access to the device to get access to a user account. When the console cable is disconnected, the logged in user is not logged out. This allows a malicious attacker with physical access to the console to resume a previous session and possibly gain administrative privileges. This issue affects Junos OS Evolved: * from 23.2R2-EVO before 23.2R2-S1-EVO,  * from 23.4R1-EVO before 23.4R2-EVO.

Affected products

• Juniper Networks Junos OS Evolved: 23.2-r2, 23.4-r1, 23.4-r1-s1, 23.4-r1-s2

References

• https://supportportal.juniper.net/JSA82977
• https://supportportal.juniper.net/JSA82977

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