CVE-2024-39512 Junos OS Evolved: User is not logged out when the console cable is disconnected
An attacker with physical access can resume a console session after cable disconnection, potentially gaining administrative privileges on Junos OS Evolved devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2024-39512?
CVE-2024-39512 is a high-severity authentication bypass vulnerability in Juniper Junos Os Evolved, published on 10 Jul 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-1263
Which versions are affected by CVE-2024-39512?
It affects 1 product.
Products include Juniper Junos Os Evolved.
How do I fix CVE-2024-39512?
No fix has been published for CVE-2024-39512 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2024-39512 being exploited?
There is no known exploitation of CVE-2024-39512 in the wild and no public exploit code.
Other vulnerabilities in Juniper Junos Os Evolved
- CVE-2026-21902 Junos OS Evolved: PTX Series: A vulnerability allows a unauthenticated, network-based attacker to execute code as root
- CVE-2023-28983 Junos OS Evolved: Shell Injection vulnerability in the gNOI server
- CVE-2025-21599 Denial of service in Junos OS Evolved
- CVE-2024-47502 Junos OS Evolved: TCP session state is not always cleared on the Routing Engine leading to DoS
- CVE-2024-39531 Junos OS Evolved: ACX 7000 Series: Protocol specific DDoS configuration affects other protocols
Sources
Also known as GHSA-7x3w-3vjx-fhqv.